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It snows heavily in a good harvest year. [Jia Jia Pi: The word "Xue" is hidden.] Pearls are like earth, gold is like iron. [Jiaxu Side Comment: Ziwei Shiren, after Xue Gong, now receives the money from the bank, with a total of eight rooms.] Yu Cun still hasn't finished reading it. [Jiaxu's comment: Wonderful! If there are only these four, they will be rigid and not live. If there are two more, they will feel cumbersome, so this is the way to judge. Suddenly hearing a report, the man said, "Master Wang has come to pay his respects." When Yucun heard about it, he dressed himself and went out to greet him. [Jiaxu Side Comment: Hengyun Duanling Method is the method of setting a big chapter.] Have a meal time, just come back to ask. "These four families are all connected with relatives," said the disciple. "Any loss is a loss, and any honor is an honor. They are all supported and decorated, and they all take care of each other. [Jiaxu Side Comment: Early is the lower half of Fugen.] Xue, who killed a man today, is the'snow 'of a heavy snow in a good harvest year. Also not only rely on these three, his relatives and friends are outside, this is also a lot. Who will your lordship take now? When Yucun heard this, he asked with a smile, "If you say so, how can you settle the case?"? Do you probably know where the murderer is hiding? "To tell you the truth, sir," said the door with a smile, "not only do I know the direction of the murderer, but I also know the abductor." I know it, and so does the dead buyer. Let me tell the master in detail: This ghost who was beaten to death was the son of a small local squire. His name was Feng yuan. [Jiaxu's side comment: It was really an unjust encounter.] His parents died when he was young, and he had no brothers, so he was the only one who lived with some meagre property. When he was eighteen or nineteen years old, he loved men and hated women most. Jiaxu Side Criticism: I hate women most, but I still die for women. What a big deal! Not Feng yuan, but Ying Lian. This is also the injustice of the previous life, which can be skillful. [Jiaxu Side Criticism: Good, good and evil come from skillful, which can be awesome and terrible.] When he met this kidnapper selling a girl, he took a fancy to the girl and decided to buy her as a concubine. He vowed never to make friends with a man again. [Jiaxu's comment: As the saying goes, "If a man changes his ways, he will either get sick or die." Do you believe it?] Also no longer marry the second one. [Jiaxu Side Criticism: Empty write a love.] So three days later through the door. Who knew that the kidnapper had stolen and sold to the Xue family again? He wanted to take the silver of the two families and flee to another province. Who knows to did not go again take off, two hold, hit a stink dead, do not agree to cash, want to get a person only. The son of the Xue family was not to let others, so he drank a dozen of his men, beat the son of Feng to a pulp, and carried him home for three days to die. Mr. Xue had already chosen a day to go to the capital. Two days before he got up, radio shuttle racking , he met this girl by chance and wanted to buy her and go to the capital. Who would have thought that this would happen. Having beaten Feng Gongzi and taken away the maid, he was all right and just took his family on his way. He has his own brothers and servants to take care of here, and it is not for these little things that he is worth running away. Jiaxu Side Criticism: Wonderful! Human life is regarded as something small and always portrays Dumb. Not to mention, sir, who do you think is the girl who was sold? [Jiaxu Side Criticism: That's a strange question.] "How do I know?" Asked Yucun with a smile. "This man is the master's great benefactor," said the door with a sneer! She is the daughter of Master Zhen, who lives near the Hulu Temple. Her name is Yinglian. [Jiaxu Side Criticism: This is a wake-up call.] "So that's him," said Yucun! Wen Deyang was abducted when he was five years old, but now he has come to sell it? "This kind of kidnapper," said the door, "is in charge of stealing children of five or six years old, raising them in a secluded place, measuring their appearance at the age of eleven or twelve, and taking them to other places to resell them. That day this Yinglian, we coax him to play every day, although after seven or eight years, now 12 or 13 years old, although its appearance is more neat, but probably appearance, naturally does not change, acquaintances are easy to recognize. Besides, there was a little mole of Rouge the size of a grain of rice between his eyebrows, which was brought from the womb. [Jia Xu's side comment: Baochai's heat and Daiyu's timidity were all brought from the womb. Today Yinglian has a mole, which is known to all. That's why I recognize. The kidnapper rented my house to live in. That day the kidnapper was not at home, and I asked him. He was afraid of being beaten by kidnappers. [Jiaxu side criticism: pitiful!] Never dare to say, only said that the kidnapper was his own father, because he had no money to repay the debt, so he sold him. I coaxed him again and again, and he cried again, saying only, 'I don't remember when I was a child!' There's no doubt about it. That day Mr. Feng looked at him and exchanged the silver. The kidnapper was drunk. He sighed to himself, 'I'm full of sins today!' Then he heard that Feng Gongzi ordered him to pass through the door three days later, and he turned to be sad again. I couldn't bear to see him, so when the kidnapper went out, I ordered my wife to explain to him: 'Mr. Feng must wait for a good date to pick him up. I know he won't look at him as a servant girl. Besides, he has a very romantic character. His family is quite good, and he hates the guests most. Now he has bought you at a low price, and his funeral is self-evident. Endure only three or two days, why be depressed! ' When he heard this, he got a little relief from his melancholy and got what he wanted from then on. Who would have thought that there would be such an unpleasant thing in the world? [Jiaxu Side Criticism: Poor, really poor! An Ode to Unlucky Life, featuring Yinglian.] The next day, he sold it to the Xue family again. It's all right if you sell it to the second person. This Master Xue is known as the'Dumb Overlord '. He is the first person in the world to indulge in temperament, and he makes money like dirt. [Jiaxu Side Criticism: It's difficult to make money as a horse.] Then hit a falling flower water, life drag dead drag, drag a Yinglian, now also do not know whether to live or die. [Jiaxu Side Comment: Leave a step for Yinglian.] Mr. Feng had an empty joy, but he failed. Instead, he spent money and lost his life. How could he not sigh? Jiaxu Mei's comment: another "lament of misfortune". Ying and Feng added a little fantasy of joys and sorrows from the mouth of the gourd monk, omitting the method of idle writing. As the saying goes, "There is a fly in the ointment, and there are many good things." Feng yuan is the first person to open the way.] 。 omracking.com

He glanced up at the mirror, which reflected a woman in a white dress. Chu'er! His eyes lit up. "Stop the car, stop the car!" Chapter 013 I want him to lose his reputation. Chapter 013 I want him to lose his reputation. The driver braked suddenly, and when he loosened his seat belt and rushed down from the car, there was no sign of early summer at all. Chu'er! He was standing at the beginning of summer when he saw a woman in a white dress in front of him. He ran recklessly towards the man. "Chur, you're back." His hand caught her shoulder. What's wrong with you? The woman who turned around was clearly a strange face. I'm sorry, I thought you were someone else. Sheng Zhengxiu turned around with a sad expression on his face. It was probably the dream he had last night. He didn't even wake up today, so he admitted his mistake. At the moment he turned around, a white dress came out slowly from behind the marble pillar. The white skirt and black hair were flying in the wind, and the woman's expression was indifferent and cold. Maybach stopped in front of her. "Good morning, Miss." Xiao Mo has a big smile on his face. Early summer raised a smile at the corners of his mouth. "Good morning, you are quite punctual." I looked at the time, and it was exactly seven o'clock. Yesterday she said this time, in addition to her being the boss behind the company, she is now a senior student. An exchange student from the United States to a city, she has to go to school to report today. Xiao Mo, who was praised at the beginning of summer,Narrow aisle rack, was embarrassed to scratch his head. "This is what I should do. Xiao always said that you hate being late." Yes, I hate being late, and. Betrayal. She added coldly. The voice of the two words behind was very small, and Xiao Mo was immersed in the atmosphere of being praised at the beginning of summer, and did not hear it at all. By the way, Mr. Xia, everything you asked me to prepare is in the back. What do you want to eat this morning? General Manager Xiao has specially told you that you have stomach trouble and you should eat three meals on time every day. Xiao Mo looked ahead and asked. Holding his cheek at the beginning of the summer,Pallet rack supplier, I'm afraid the person who knows him best in the world is Xiao Yang. Whatever. "It's still early. Xiao always said that breakfast should be light and stomach-nourishing. I know a porridge shop. Let's go there for breakfast." "All right." At the beginning of summer, I was bored and played with my mobile phone. He saw a picture of her and Sheng Zhengxiu, in which his face was slightly red, like a sleeping prince. He is still as refined as he used to be, but his eyebrows are more mature than they were three years ago. Nan Ruoqiu's parents should also have seen this picture, she chuckled, a big play is about to be staged. Dialed the editor-in-chief's phone, the phone was quickly connected, not a little tired, but very energetic. Miss, the photos you provided me are so explosive! The editor-in-chief was all excited. Is the copy ready? At the beginning of summer, he lowered his voice. Ready, pipe cantilever rack ,long span shelving, I have contacted a number of media sites, will be the first time to burst out. By the way, miss, what do you want for the good news you have provided me? Asked the editor-in-chief. Don't forget the well-digger when drinking water. He is also a well-educated person in the circle. If he gets something, he will naturally pay for it. The reward I want. Xia Chu's voice paused, and then he opened his mouth again: "Let Sheng Zhengxiu lose his reputation." "Well, don't worry, Miss. As soon as the news broke, his image as a good man was ruined.". He has been so well disguised that even I have been deceived. If it weren't for the photos you provided, Miss, I wouldn't know he was still this kind of person. The editor-in-chief's words are still coming, but the thoughts of early summer have drifted away. Chapter 014 Miss Xia is going to have bad luck. Chapter 014 Miss Xia is going to have bad luck. At the moment, room 8802 of Shenghao Hotel, when Jiang Tezhu arrived with his room card, he was stunned to see the scene on the bed. The man was tied up on the bed, and the bed was wet. He only had a bath towel around his waist and money scattered around him. Sir, didn't you say you were drunk? You last night.. He didn't say the following words. Jiang Tezhu knew for the first time that men actually like to play like this, no wonder he looked down on ordinary women. The average woman who dares to tie him up is not looking for death! The air pressure on someone's body is cold. This was poured cold water, but also in the air-conditioned room blowing for an hour, you can imagine how cold the body is. What are you still doing there? Untie me! The man's limbs were numb. Yes, sir. Where is the living Lei Feng? Why didn't you see her? The special assistant looked around, but did not see the good Samaritan. The man was there when he called at the beginning of the summer, and his face was cloudy. Why, you want to see her? Hearing the man's gloomy voice, Jiang Tezhu was so frightened that he quickly restrained his mind and dared not ask any more questions. He began to untie the rope, but found that it was not an ordinary knot at all. Sir, who tied you up? This is no ordinary binding. He began to feel that something was wrong with it. Do you think I wouldn't break free if I was tied up in a normal way? Get the knife. Jiang Tezhu hurriedly cut his rope with a knife and watched the man begin to move, although the fire in his body was extinguished. But the anger in the heart is monstrous fire, "that bold woman, dare to hold me hostage!" "Shall I call the police, sir?" Jiang Tezhu said with a serious face. No, you go and find out where she is. "Yes, who is she?" "Miss Xia, early summer." The man said and walked towards the bathroom. In the bathroom, he saw himself in the mirror, with a lot of women's lipstick marks all over his body, and she really enjoyed herself last night! Thinking about the way she teased herself, she was quite different from the green white rabbit in those days. This is only a person who is experienced in love, so she has a lot of men in the past three years? At the thought of this,Drive in racking system, the man exudes cold anger all over his body. Good. Three years ago, she escaped from her own world. Three years later, he will never let her go again!. omracking.com

With her knowledge of him, the latter is much more likely. This was not because she felt how important she was to him, but because Cheng Yi could not accept her breaking up first. All these years, everything is up to him. If she doesn't cooperate, he has ways to treat her. She was not brave enough to resist him. Without this mistake, the text message might have been in the draft box all the time. Words go out is very happy, but think of is about to face Cheng Yi's questioning, she is perturbed. Cheng Yi never told her about Jieyi, although the woman's sixth sense, let her feel the existence of Jieyi, but it is just a feeling. She did not know how long Cheng Yi had been hiding from her, and she could not swallow the thought that he might be doing those things with another woman. Zhou Honghong's paranoia about loyalty comes from her parents. When Zhou's mother was still pregnant with Zhou Honghong, Zhou's father went to work in the county town and had an affair with a female supervisor in the factory. This matter was disclosed to Zhou's mother by a village working with Zhou's father. Zhou's mother almost lost her child because of the news. Later, Zhou's father came to the hospital and asked Zhou's mother to forgive him. Said that the female supervisor seduced him, he refused, but drunk, did not hold, but also vowed not to do it again. Mother Zhou took care of the baby in her stomach and finally put up with it. There was a lot of gossip in the town for a while. Zhou's mother knocked out her teeth and swallowed blood. She had a big belly. She had to smile and explain to her relatives and friends that there was no such thing. It was all made up. Zhou's father also clarified everywhere that he had no derailment. After that,heavy duty racking system, it was calm for a few years. But when Zhou Honghong was three years old, Zhou's father had an affair again. After frequent quarrels between husband and wife, Zhou's mother finally went back to her mother's home. Little Honghong did not see her mother for a few days, crying non-stop, Zhou's father could not coax, carrying the child to make amends. Zhou mother is the heart is dead,Pallet rack upright, the man she is not want to live with him, but she can not let go of her daughter. Three-year-old Xiao Honghong is still a silly baby. She only knows that her parents always quarrel, but when Zhou's mother asked her, "Does Hong want to be with her father or with her mother?" She sucked her little index finger and replied loudly, "Mom!" The food cooked by dad is not delicious. Zhou's father left Yongji town later. Zhou Honghong has a vague impression of him, and she doesn't miss him. She and her mother were criticized and talked about for a long time because of his infidelity. Because of his infidelity, she lost her father's love from an early age. Because of his infidelity, her mother carried a family by herself. The next day to send Liu Yizhuo and three classmates to go out, Zhou Honghong just understand how to send out their text messages, Liu Yizhuo actually set up a draft box to send regularly. She really doesn't know whether to laugh or cry. But in any case, it is also an opportunity. Pei did not come out to see his classmates off. For the first time, he came downstairs after his classmates left. Then he painted his, and Zhou Honghong did her own work. Near noon, Steel racking system ,Pallet rack beams, Cheng Yi did not call again. Zhou Honghong had some complaints in her heart. Was he too busy to talk to her at all. But at the same time, she was in a mess. Will Cheng Yi be angry and really break up with her like this? Pei saw that she was restless all morning and talked to her. She talked to him without a word. He drew for a while, stopped writing and sat opposite her, accompanying her to choose vegetables. She could tell by his gesture that he had never worked, so she smiled and taught him. Pei threw the cauliflower in his hand, aimed at Zhou Honghong's hair, and was about to draw the effect of wearing cauliflower on her head. Suddenly, it was blocked by a hand. Pei looked up and looked at Cheng Yi's icy eyes. 27 Chapter 26 The two men looked at each other for a few seconds, and the hostility between them was obvious. Pei withdrew his hand and threw the cauliflower back into the basket. Zhou Honghong turned her head in amazement, Cheng Yi's appearance was so sudden that she was unprepared, "You." Why are you here? Cheng Yi turned to look at her and smiled, but his eyes were still cool. "Did my wife miss me? I'm coming." This irony made Zhou Honghong feel guilty for a while. Pei gathered up his expression and looked at her meaningfully. He had noticed the name, and now that he thought about it, it was his negligence that he did not expect her to be married. Zhou Honghong did not pay attention to this side, she looked at Cheng Yi's appearance to know that he was in a bad mood, afraid that he was making trouble here, she got up and asked slowly, "Did you eat breakfast?" Out of the corner of his eye, Cheng Yi caught a glimpse of Pei looking at her. He pulled Zhou Honghong's hand. His movements were rude, but his voice was soft. "I got up before dawn and rushed over to eat my wife's breakfast." At this time, Pei interjected, "Cousin, your boyfriend?" Zhou Honghong's hand was pulled by Cheng Yi, and it was not good to earn with him here, so he could only nod awkwardly at Pei. As a result, Cheng Yi's strength is heavier. She almost cried out in pain, and the way she looked at him showed weakness. If she had a choice, she didn't want others to see her way of getting along with Cheng Yi. Cheng Yi did not weaken the strength of the hands, fake smile clasped her shoulder to the kitchen, "I want to eat porridge." She nodded and answered, secretly trying to shake off his hand. She's in too much pain. Instead, he clasped his fingers with hers. He jammed his knuckles against hers and dragged her into the kitchen. He completely ignored Pei. But Zhou Honghong knew that Cheng Yi was on fire. Sure enough, as soon as he entered the kitchen, he pushed her to the washstand, and she accidentally tripped and almost hit the pot on the stage. Before anyone could stand still, he had already leaned forward. Cheng Yi grabbed her waist, put her in his arms, lowered his head, and pressed down on her lips like a storm. His teeth/teeth/clenched her lips/flaps, and his tongue/tip/heavily/heavily swept/wiped every corner of her mouth,Industrial pallet rack, even curled into her throat/throat/deep. Zhou Honghong was not suitable for his stimulation and whined to resist. He got into her blouse with one hand, gripped her fullness and rubbed it into various shapes. She wanted to hide from the pain. But he showed no mercy at all, and his strength seemed to pinch/explode the white/meat in his hand. omracking.com

Yang Jiao and Yang Jian looked at each other and smiled. Yang Jiao said to Yang Jian, "Second brother, you should say it first." Yang Jian collected himself and said, "Mother, the boy was accepted as a disciple by Yuding Zhenren in Jinxia Cave of Yuquan Mountain. He has learned seventy-two kinds of changes." When Fairy Yunhua heard this, she exulted, "My son is really lucky!"! That jade tripod real person for Niang is heard of, he is the disciple of the sage of jade clear, a body is unfathomable, is a true immortal! The child can worship the jade tripod real person as the teacher, is really God's favor! Then he asked Yang Jiao, "What about you, Da Lang?" Yang Jiao smiled and said, "Mother, the boy was saved by the Holy Father. I had the honor to worship the Holy Father as my teacher. The Holy Father's kindness was passed down to Xuanqing Daodao. He even gave the boy an axe to split the mountain and save his mother." Fairy Yunhua exclaimed, "But the sage of Xuanqing!" Seeing that Yang Jiao nodded yes, she suppressed the horror in her heart and calmed down the breath in her chest. She was overjoyed and said, "My son is lucky to have worshipped the sage Xuanqing as his teacher. The Yang family is blessed!" One side of Yang Jian frowned and said, "I also heard the teacher say that the sage of Xuanqing and Shizu are both authentic Pangu. The eldest brother worshipped the sage of Xuanqing as his teacher. Isn't he a generation higher than the foolish younger brother?" Yang Jiao was stupefied and immediately said with a smile, "Exactly!"! It seems that in the future, the second younger brother will call him Martial Uncle when he sees the elder brother. Stop laughing, obviously very happy! Yang Jian also pretended to salute and said, "Martial Uncle is here!"! Martial Nephew, be polite! Yang Jiao nodded and said in a deep voice, "Don't be polite,heavy duty warehouse rack, Martial Nephew." Then he took Yang Jian's hands and laughed. Yang Jian also laughed. Laughter spread ten miles, startled the birds in the trees, and the spirit animals seemed to be infected by the laughter, singing in unison! Fairy Yunhua looked kindly at her two sons and looked up at the sky, as if she wanted to see someone. Husband, your soul in heaven can also rest in peace! A drop of tears fell and was blown away by a breeze without leaving a trace! Above the heavenly court, the Jade Emperor said to His Highness and the immortals with an expressionless face, "All the ministers, Yang Jiao and Yang Jian,Warehouse storage racks, have split the Peach Mountain and violated the law of heaven. Which beloved minister is willing to subdue them in the lower world?" When the immortals heard this, you looked at me, and I looked at you, but I didn't know what to say. Didn't you hear that? The Yang brothers worshipped the sages and learned the way. Although the immortals had some status in heaven, they still had self-knowledge. They knew that the sages could not afford to provoke them, so they had to look at each other! The Jade Emperor and the Queen Mother looked at each other with great calmness in their hearts. Then they pretended to be angry and said, "Could it be that none of the civil and military officials in the Manchu Dynasty had subdued the evil spirits?"? When have I ever been a wimp in heaven? The words made all the immortals blush. Taibai Jinxing observed her words and expressions. As soon as her heart moved, she went out and said, "Your Majesty, the Yunhua Fairy has been pressed into Taoshan for ten years and has suffered a lot. Your Majesty does not neglect her because of her affection. She is really the king of all virtues!"! Now that Yunhua Fairy has come out of Taoshan, it can be seen that Heaven has shown that Yunhua Fairy's doom is over. Why don't Your Majesty obey Heaven's destiny and let it go? The beauty of this matter also praises Your Majesty's benevolence for all living beings in the three realms! When the Jade Emperor heard this, he was overjoyed. With a calm face, he asked the immortals, "What do you think of the immortals?" "I have no objection," said all the immortals! Your Majesty's benevolence, I can't wait! But secretly relieved in the heart, finally do not have to provoke the Yang brothers. In such a happy situation, the immortals dare not disagree. At the foot of Peach Mountain, Narrow aisle rack ,Cantilever Storage rack, the three of them moved in their hearts and looked up to the sky at the same time, only to see a fairy falling from thirty-three, with crane hair and childlike face, holding a yellow silk and satin in her hand. Yunhua Fairy recognized that it was Taibai Venus. Taibai Jinxing smiled from a distance and said, "But I want to congratulate Your Highness on the reunion of her family. Congratulations!" Before Fairy Yunhua could speak, Yang Jian took a step forward, lifted his three-pointed, two-edged sword, and shouted at Taibai Jinxing, "Why are you waiting for the celestial beings to come here?"? If you want to press my mother again, you have to ask the magic weapon in my hand! Taibai Venus a Leng, immediately slightly wry smile, helpless in the heart. Fairy Yunhua pulled Yang Jian and said, "My son, don't be rude to Venus!" "She stepped forward and saluted, saying," Yao Ji has seen Venus. I don't know where Jinxian comes from. Taibai Jinxing nodded and said, "The little fairy has come at the behest of the Great Heavenly Master. The Great Heavenly Master has pardoned the princess's sins. Please take the behest." Fairy Yunhua took the imperial edict and unfolded it. Her complexion changed unceasingly! For a long time, she sighed and said, "Thank you, Jinxing!" "What did the princess say?" Asked Taibai Jinxing? You really killed Xiaoxian! The princess must have known the pains of Datianzun, and Xiaoxian took her leave. Then he saluted again and left for heaven. Seeing that Taibai Jinxing had gone, Yang Jiao said, "Mother, the teacher has told me that if I rescue my mother, I can pay a visit to Zhang Island above." Fairy Yunhua nodded and took her two sons to Xianzhou, the abbot of the East China Sea. Exactly: The dust and smoke have dissipated, the peach hill has opened, and the mother and son are happy to meet again. [Volume III, Chapter VI, The Beginning of the Great Plunder, King Zhou's Incense] On the abbot's island in the East China Sea, Hong Xuan looked at the three men kneeling on the ground and said indifferently, "You can get up." The three of them stood up to thank him again. Yang Jiao took out the axe and said, "I have rescued my mother from Taoshan. I would like to return the artifact." Hong Xuan said with a faint smile, "You have worshipped me as your teacher, but you have never given you a magic weapon to protect yourself. Now that you have split Taoshan with a mountain axe, I will give you this axe, with the intention of being a teacher." Yang Jiao was overjoyed, but he thanked him calmly and said, "I thank you for your gift." Hong Xuan looked at Yang Jiao's steady bearing, heart dark praise, but there is the wind of Kong Xuan, not arrogant and impetuous, is the choice of cultivation! Then he said to the Yunhua Fairy, "Yao Ji, you must know the difficulties of the Jade Emperor. Don't blame him. Sometimes, when you are in a certain position, you have to do something against your will. What's more, what he does is the Lord of the Three Realms, which has a great influence." Fairy Yunhua replied calmly, "Report back to the sage. Yao Ji already knows the difficulties of the Jade Emperor, but in any case, he killed Yao Ji's husband after all, but Yao Ji can't let it go. He is Yao Ji's brother,warehouse rack manufacturer, and Yao Ji doesn't want to see him again.". Now that Yao Ji has got my three children, they are all safe and sound. My wish has been fulfilled and I have nothing to worry about. May the sage take pity on me and take Yao Ji in. Since then, Yao Ji has devoted herself to cultivating Taoism and no longer pays attention to the fate of the world! Then Yingying prostrated herself to the ground. omracking.com

Original title: Brief Introduction of medical protective suit and Detection Technology Under the current situation that COVID-19 is still raging, medical protective suit is a necessary protective clothing to ensure the safety of medical staff, public health workers, patients, hospital visitors and other personnel entering the infected area, and its role also includes isolation of pathogens, harmful ultra-fine dust, acid and alkaline solutions, etc., to ensure the safety of life and work of relevant personnel, while keeping the environment clean. 1. Disposable medical protective suit. The performance indicators of medical protective suit mainly refer to protection, comfort, physical and mechanical property, etc. Among them, the most important performance requirement of medical protective suit is protection, which mainly includes liquid barrier, microbial barrier and particulate matter barrier; comfort mainly refers to air permeability and moisture permeability. In order to enhance the protective effect, protective suit fabrics are usually laminated or laminated, which are thick and have poor air permeability and moisture permeability. Long-term wear requires ventilation, moisture permeability, perspiration and heat discharge; physical mechanical property mainly refers to the performance of medical protective suit materials such as tear resistance, puncture resistance and wear resistance, so as to avoid providing channels for the spread of bacteria and viruses. 2. Air permeability of medical protective suit. Disposable medical protective suit materials need to meet the requirements of "three refusals and one resistance" (water, blood, alcohol and antistatic). The composite material can be compounded by different materials, such as polyethylene/polypropylene spunbonded nonwoven cloth compounded with a breathable microporous film or other nonwoven cloth, or spunlaced nonwoven cloth compounded with a breathable microporous film, or wood pulp compounded with spunlaced nonwoven cloth. In addition, some membrane materials made of polytetrafluoroethylene can be used to make high-end protective suit fabrics. Among these materials, breathable microporous films are particularly important. The so-called breathable film is made by uniformly mixing a functional inorganic product into the polyolefin raw material, so that the product generates pores due to high stretching in the film forming process, thereby having the functions of air permeability and moisture conduction; the functions of the breathable film are briefly described as water resistance and air permeability (moisture), taking the most commonly used PE breathable film as an example. (1) Principle of ventilation The principle is very simple: inorganic substance + stretching = micropores. In fact, the operation is very particular. Only the micropores with appropriate size and uniform distribution are effective, as shown in Figure 2: Figure 2. Effective pore size of breathable film If the stretching is insufficient, the pore diameter will be too small or even no pore diameter, while the poor stretching and the micropores with insufficient size can only be used as waste products. (2) Basic film-forming principle of breathable film Film-forming principle of breathable film: PE + CaCO (masterbatch)-film-forming-stretching-breathable film. PE breathable film is made by blending LDPE/LLDPE polyethylene resin carrier with about 50% special calcium carbonate, extruding into film and directionally stretching to a certain ratio. As that polyethylene resin is a thermoplastic plastic material, the polyethylene resin can be stretch and crystallized unde certain conditions, the interface between the polymer and the calcium carbonate particles is peeled off dure stretching, winding pores or channels which are communicated with each other are formed around the calcium carbonate particles, and the pores and the channels endow the film with a ventilation (moisture) function, so that the environments on both sides of the film are communicated. (3) The action mechanism of gas permeable membrane A humidity gradient pressure difference is formed when the water vapor concentration on one side of the membrane is greater than the environment on the other side of the membrane. This provides the basic condition for gas (vapor) convection,Medical Disposable Coverall, and the humidity environment on both sides of the film tends to be relatively balanced due to the formation of convection. The breathable membrane is used as a water barrier membrane, which has a barrier effect on liquid. Because there are many paths in the membrane, the "length-diameter ratio" (L/D) value of the tortuous channel formed by the membrane is very large, which can be understood as capillary. Therefore, in the case of the same liquid (such as water) and the same pressure, as long as the liquid column height of the capillary is less than the length of the capillary, it can ensure that the liquid will not leak out. Expand the full text 3. Classification of medical protective suit. At present, the materials used in medical protective suit on the market are different, but no matter what kind of materials are used, they should meet the requirements of various indicators. Since SARS, various kinds of medical protective suit have emerged. However, according to the form of use, it can be roughly divided into reusable type and disposable type. (1) Reusable medical protective suit material Reusable types include: traditional woven fabrics made of natural fibers (cotton, hemp) and synthetic fibers (polyester, nylon) and their blends; high-density structural fabrics made of superfine filaments; laminated fabrics made by laminating microporous films and ordinary fabrics. Traditional woven fabric: a reusable woven fabric made of natural fibers (cotton, hemp) and synthetic fibers (polyester, nylon) and blends of the two. Traditional cotton surgical gown is still widely used because of its good comfort, but cotton fabric is easy to absorb pollutants and microorganisms in the air, and its good hygroscopicity becomes a favorable condition for the survival of microorganisms. In addition, cotton fabrics do not prevent the penetration of blood and other liquids. High-density fabric: High-count cotton yarn or other superfine synthetic filament is used to weave high-density fabric, so that the yarn gap becomes very small. The fabric has moisture permeability due to the capillary action of fibers, Medical Disposable Coverall ,Antivirus Disposable Mask with CE Certificate, and has certain liquid penetration resistance after being finished by fluorocarbon, silicone and other waterproof agents, but there are still gaps on the surface of the fabric. Although this kind of fabric has excellent moisture permeability, drapability and good handle, its resistance to water pressure is poor. Coated fabric: The fabric is coated directly or by the transfer method, so that the surface of the fabric is sealed by the coating agent, thus having impermeability. The coating agent comprises polyurethane, polyvinyl chloride, polyacrylate, organosilicon rubber and the like. The moisture permeability of fabric is obtained by the action of microporous structure or hydrophilic groups formed by special methods on the coating. Coated fabrics can be divided into hydrophilic coated fabrics and microporous coated fabrics. The hydrophilic coated fabric achieves the function of moisture vapor permeability by forming pores allowing water vapor to pass through through the free volume formed by the thermal movement of the coating agent polymer and the space between the polymers. Due to the presence of hydrophilic groups, sweat water vapor molecules pass through the coating through the action of adsorption-diffusion-desorption. Microporous coated fabrics allow water vapor to pass through by forming a permanent microporous and channel system of 2 to 3 μm in the coating agent. Generally speaking, coated fabrics are easy to process, have high water pressure resistance and strong permeability resistance, but have poor moisture permeability. Laminated fabrics: Laminated fabrics are generally made by laminating ordinary fabrics with a special film. For example, PTFE (polytetrafluoroethylene) super waterproof and moisture-permeable composite fabrics are due to the micropores of the PTFE membrane of the main body of the fabric. On the other hand, the porosity of the film is high, the pore diameter is larger than the diameter of water vapor molecules, the water vapor molecules can freely pass through, and the moisture vapor permeability is good. (2) use disposable medical protective suit material The disposable type is generally a nonwoven material. Spunlaced nonwovens, spunbonded nonwovens, flash evaporation nonwovens and SMS composites are the main types of medical protective suit. Spunbonded method: Spunbonded method is also called spunlaid method. The principle of spunlaid and the properties of fiber web are very similar to those of silkworm silk screen, except that it uses resin as raw material, uses chemical fiber spinning method to form filament, and then uses airflow or mechanical method to separate filament into web, and in most cases, it needs to achieve the purpose of cloth formation through consolidation process. Nonwovens produced by this process are very close to traditional textiles in terms of hand feeling and performance, and polypropylene spunbonded fabrics are more mature in domestic technology. Flash process: Flash process is also known as instantaneous solvent evaporation spunlaid process, which uses polyethylene hydrocarbon as the main raw material. Different from the spunbonding method which uses airflow to separate filaments or the combination of airflow and machinery to separate filaments, the flash evaporation method uses electrostatic separation, that is, the electrostatic generator or electrostatic salt additive is used to form an electrostatic field, so that the filaments rub against each other in the stretching process to form electrostatic separation filaments, which repel each other and maintain a single fiber state, and then the fibers are condensed into a web by an electrostatic device, and the web is then hot-rolled to form the flash evaporation nonwoven fabric. The "Tyvek" series of nonwovens developed by Dupont is manufactured by flash evaporation. Spunlaced process: Spunlaced nonwovens production process is a new type of nonwovens processing technology, which was successfully developed by Dupont and Chicopee companies in the United States in the mid-1970s. Spunlace process, also known as jet spraying process, is to spray the fiber web through high-pressure water column and high-speed water flow, so that the fibers in the fiber web move, rearrange and entangle with each other under the action of water power, so as to achieve the purpose of consolidation into cloth. Spunlaced nonwovens have the advantages of high strength, good moisture absorption and air permeability, not easy to fluff, soft handle, good drapability and no chemical adhesives. The main raw materials are polyester, nylon, polypropylene, viscose, absorbent cotton fiber or pulp and other functional fibers. SMS composite nonwovens: Composite nonwovens are nonwovens made by combining two or more nonwoven webs with different properties (or nonwoven fabrics with other textiles and plastics) by chemical, thermal or mechanical means, or by combining different web forming processes. The composite products with nonwovens as the main body processed by these methods integrate the excellent properties of various materials, and the comprehensive properties of the products are fully enhanced through the complementary properties of various composite materials. 4. Relevant standards for medical protective suit. In terms of packaging and labeling of protective footwear products, China's standards, NFPA 1999 of the United States and EU standards have made more comprehensive and strict provisions. China's GB 19082-2009 "Technical Requirements for Disposable Medical protective suit" stipulates that the protective suit is composed of hooded jacket and trousers, which is divided into one-piece structure and split-body structure, and is not suitable for reusable protective suit, and stipulates the flame retardant performance, water level, charge density, elongation at break and waterproof indicators of medical protective suit. The protective suit applicable to NFPA 1999 standard in the United States are divided into disposable and reusable ones, including split and one-piece work clothes and patient-used ones. In addition to the conventional physical strength performance, flame retardant performance and other indicators, the standard also requires overall testing, and the isolation layer and joints should be tested for liquid resistance and microbial penetration. The European Union's EN 14126-2003 "Anti-infective protective suit for protective suit-Performance requirements and test methods" is applicable to repeatable and limited-use protective suit, but it is not suitable for surgeons and patients to avoid cross infection during surgery. It is required that the joints of the protective suit shall comply with the strength requirements in the EN 14325. The whole set of protective suit is divided into 6 categories according to the protection performance, from type 1 to type 6, the smaller the number is, the higher the protection is; type 4 is the recommended medical requirement,Medical Full Body Coverall, the type with (B) is biological protection, and generally the protective suit with type B is preferred. Above is about "the medical protective suit and the examination technology brief introduction" the content introduction, hoped may bring some help to you. Return to Sohu to see more Responsible Editor:. zjyuan-group.com

Original title: What non-woven fabrics are used for foundation and medical protective suit? Nonwovens Information Nonwovens Information In the environment of basic protection and medical work, we will encounter the dangers of germs, harmful ultra-fine dust, acid solution, salt solution and corrosive chemicals. For these dangers, we need to use protective suit to protect the whole body of workers. Protective suit is also known as work clothes. What are the characteristics of protective suit? What non-woven fabric is the protective suit made of? ? Typesetting | Nonwovens Information Article | Search Good Goods Image | Web Collection 1 Breathable protective suit for basic protection. Suitable for automotive, aviation, food processing, metal processing, mining, oil and gas operations. Generally, it is hooded from head to shoulder to body, and the cuffs and trousers are tightened. Protective suit requires effective prevention of dust and solid particles from entering the working environment. It should be comfortable and breathable, and not easy to dust. It has strong protection and can block slight splashes in low-risk areas. The fabric used in this protective suit is SMS non-woven fabric. The structural characteristics of superfine melt-blown fiber layer and high tenacity spunbonded non-woven fabric layer in the structure of SMS material make the material have certain hydrostatic pressure resistance and air permeability, which form the basic isolation performance of SMS material. Expand the full text In addition, SMS non-woven fabrics also have barrier properties and are used in various protective suit products, including medical protective suit, industrial protective suit, chemical protective suit and so on. Of course, in addition to SMS non-woven fabrics, there are also PE film composite non-woven fabrics, breathable film non-woven fabrics and spunbonded non-woven fabric which can be used as medical protective suit fabrics. 2 medical protective suit Medical protective suit, also known as medical protective suit, is the work dress of medical staff, that is, protective clothing for the body of medical workers. It is mainly used to isolate germs, harmful superfine dust, acid solution, salt solution and corrosive chemicals, and keep the environment clean. 3 Characteristics and uses of medical protective suit. (1) protective suit of common PP non-woven fabric; It is made of PP spunbonded non-woven fabric and generally weighs 35-60 GSM. Features: breathable, dustproof, not waterproof, good tensile resistance, the difference between the front and back is not obvious. PP spunbonded non-woven fabrics are used for common isolation clothes, low-grade isolation clothes and patient clothes. (2) protective suit of that film-covered non-woven fabric; The fabric is a film-coated non-woven fabric, generally weighing 35-45 GSM. Has the characteristics of airtightness, waterproofness, good bacteria isolation effect, obvious distinction between the front side and the back side, non-woven fabric on the side in contact with the body, no allergy and good hand feeling. There is a layer of plastic film outside to prevent liquid leakage, used in pollution and virus occasions, hospital infectious wards mainly use film-covered non-woven protective suit. (3) SMS non-woven protective suit. There are three layers of composite non-woven fabrics, a waterproof and bacteria-proof layer in the middle, and a sesame point SMS non-woven fabric in the outer layer, which is strong and tensile, and has the function of isolating waterproof and breathable. Grams of 35-60 GSM are generally used. SMS non-woven fabrics are used for surgical gowns, surgical hole towels, isolation gowns, test gowns, operation gowns and non-surgical masks, as well as visitors' clothes. (4) protective suit of that breathable film non-woven fabric. PP polypropylene is used and covered with PE breathable film. Generally,KN95 Mask with Fast Shipping, 30g PP + 30g PE breathable film is used. Therefore, it has strong air permeability, good anti-permeability, and high impact resistance while resisting the corrosion of various organic solvents and acids and bases. Strong mechanical properties, soft and comfortable texture. Does not support combustion, is non-toxic and non-irritating, and is harmless to skin. Bacteria-proof, waterproof, slightly breathable, soft texture, is the most advanced medical protective suit for medical protection. Its characteristic is that the sweat of the human body can be emitted outward, while the harmful gases and moisture outside can not invade. In addition, the breathable membrane non-woven fabric is also used for surgical gowns, surgical hole towels and isolation gowns. The chairman personally took the lead in research and development, and the medical equipment leader broke into the 100 billion protection market. Cypress blue apparatus Summer has come, but the novel coronavirus has not gone. At present, there are nearly 16 million confirmed cases of COVID-19 in the world, and the number of new cases is still more than 200,000 per day. According to the prediction of many experts,Quickly Delivery Disposable Protective Clothing, it is a big probability that the global epidemic will last until next autumn. The medical protection market activated by the epidemic will remain highly active. In this context, medical protective products will also maintain a high consumption for a long time, and the global market is far from saturated. 1 "Capital of Medical Consumables" under the Epidemic Situation In the first half of the year, everyone was interested and curious about the mask market. Not only because we need to wear masks every day to prevent infection, but also because its price has risen and fallen sharply in the short term, which is closely related to our daily economic life. Strong demand determines the strong market, in the past six months, the domestic market for protective products is almost crazy. According to the data of Tian Eye Check, there are nearly 160,000 enterprises in China whose business scope includes mask business. Among them, more than 70000 enterprises were newly registered in the first half of this year, which is 12 times the number of the same period last year. The sudden "prosperity" of the mask market has made Henan Changyuan repeatedly "out of the circle", moving from behind the scenes to the front stage. Changyuan is a county-level city directly under the jurisdiction of Henan Province, known as the "capital of medical consumables" in the industry. According to a previous report by Xinhua News Agency, Changyuan currently has more than 70 enterprises of various types of sanitary materials, operating more than 2000 enterprises, usually accounting for more than 50% of the national market sales, and the coverage rate of major hospitals in the country exceeds 75%. There is a joke in the local area, "If Changyuan sneezes, the national medical consumables market will catch a cold." It is enough to show the important position of Changyuan in the national Eisai market. During the epidemic in China, dealers who went to Changyuan to buy masks stood on the street almost every day, sometimes even queuing for one or two kilometers. The daily orders of the mask factory are like snowflakes, and the masks are pulled away as soon as they leave the factory. Helping Changyuan City "out of the circle" is also the city's leading enterprise Camel Holding Group Co., Ltd. The company, whose anesthesia kits account for one third of the country's market share, did not produce masks before the epidemic. However, the severity of the epidemic made them realize that the shortage of protective materials was the most prominent problem, so they set up an emergency research group to undertake the first batch of COVID-19 pandemic prevention and control projects in Henan Province, "rapid and residual-free sterilizat ion methods for protective products urgently needed for the epidemic situation" and "research on new omni-directional functional head and face protective devices", and began to set foot in the field of medical protection. After making this decision, Camel Group urgently launched the production line of medical protective equipment, and the personnel of other production lines were also transferred to the production line of protective equipment. Concentrated efforts are very effective. Camel Group spent a total of 15 days from the independent development of moulds to the launch of the first generation of windscreen products. Soon after the news spread to the Internet, it became a hot search. The reading volume of Weibo alone was as high as 310 million. The vast number of medical staff and netizens left messages praising it, "The capital of medical consumables is really unusual.". 2 Leading enterprises enter the market The chairman personally led the research and development team. As the leading enterprise of medical devices in Changyuan City, Camel Man began to enter the medical protection market during the epidemic period, Medical Full Body Coverall ,Virus Prevention Mask 3 Ply with Earloop, but it did not affect its rapid occupation of a place in the market. When the epidemic in China is serious, the primary task of Changyuan City is to expand capacity and production. Under the guidance of this goal, the daily production capacity of local medical protective masks in Changyuan has increased from less than one million before the epidemic to more than 50 million. Among them, Camel's mask production capacity can reach 5 million, accounting for one tenth of the total daily production capacity. It is not easy to achieve such capacity, especially during the shortage of raw materials for melt-blown fabrics. At the beginning of the outbreak, the output of melt-blown fabrics in Changyuan was only a few hundred kilograms, which directly affected the production capacity of local medical protective equipment enterprises in Changyuan. For many mask manufacturers, if they want to buy melt-blown cloth at that time, they need to replace it with a mask. It's interesting to say that the camel man bought a mask at that time, and it was bought at a high price, but it was not used to replace the melt-blown cloth. At that time, Wang Guosheng, chairman of Camel Group, issued instructions to the sales department to purchase 400000 yuan worth of masks, protective suit and other products from other enterprises at a high price through his own channels, and sold them at a fair price or donated them directly to medical units. This established the camel people's determination to produce their own masks. In fact, for a long time since then, when the prices of production equipment and raw materials have risen sharply, camel people have insisted on selling at the bottom price even if they lose money. It is precisely because of the insistence on this original intention that camel people decided to independently develop melt-blown cloth machine to solve the problem of mask production. Not only that, camel people also made 10 mask machines and 50 hot air blowers. In fact, Camel Group only got the production qualification of medical masks on March 6, when the mask machine equipment could not be delivered in time. It is also by virtue of their own research and development capabilities that the camel people have completed the task of supplying masks. As we all know, in the field of medical protection, the highest level of protection is positive pressure protective suit. Positive pressure means that the pressure of the gas inside the protective suit is higher than that of the outside air, so that the virus can not easily enter. Compared with ordinary protective suit, the design of positive pressure avoids the problem that ordinary protective suit often have loopholes and have no good protective effect. During the epidemic period, most of the medical staff are equipped with ordinary medical protection, which has poor air permeability. If the weather is hot, the stuffy feeling will be very serious. When they took off their ordinary protective suit and showed their "scarred" faces and sweat, Wang Guosheng, chairman of Camel Man, decided to personally lead the research and development of positive pressure protective suit to solve the above problems. The project team first changed the airflow channel in the protective suit, and added a breathing valve to provide clean air by the air supply device. The air supply volume is up to 190L/min, which is much higher than the national standard of 120L/min, so as to ensure the real-time circulation of air in the protective suit. Next, the air supply device will be upgraded to adjust the temperature according to the change of seasonal temperature, which can refrigerate and heat to achieve a certain constant temperature effect. Ordinary medical protective suit need to be used together with goggles, surgical masks, protective masks, protective masks and so on, while the positive pressure protective suit changes the traditional cumbersome wearing mode to achieve full-body protection, but does not need to be used with goggles, protective masks and other products. At the same time, the project team tested more than 20 kinds of filter materials before and after, and finally achieved the filtration efficiency from the initial 98% to more than 99.995%, the maximum efficiency of isolation of pathogens. Medical positive pressure protective suit Medical positive pressure protective hood At the same time, camel people are also stepping up research and development of more types of masks with better protection, including medical silicone protective masks, medical protective masks (cup type), KN95 protective masks (fish type), net respiratory protective masks and other products. Wherein, the medical silica gel protective mask integrates a mask and goggles, the filtering efficiency is more than or equal to 97%, and the mask body is made of medical silica gel material, which can be steamed and disinfected or disinfected by alcohol to realize the purpose of repeated use. Medical silica gel protective mask More importantly, in the research and development of new protective products, Camel Chairman Wang Guosheng personally led the team to complete two key scientific and technological projects undertaken by Henan Science and Technology Department in a short period of time, developed six new products, such as new protective hoods, positive pressure protective suit, net breathing masks, and obtained 54 patents, including 3 international patents. There are 18 utility model patents. As a result, Camel Group has become the first licensed positive pressure protective suit manufacturer in China. Positive pressure protective suit is at the top of medical protective products, and its technical content is self-evident. At present, Camel Man has a complete chain of protective products, covering all protective products from granulation to spunbonded cloth, melt-blown cloth production, and then to primary, secondary and tertiary protective solutions. Production capacity and product reserves are sufficient to meet the demand for protective products for outbreaks. 3 Overseas epidemic has not reached its peak The protection market is far from saturated. As the domestic epidemic subsided, the domestic medical protection market also got rid of the crazy state, mask manufacturers turned to overseas markets, and Camel Group was no exception. In fact, since April, the masks produced by camel people have been mainly sold to Europe, Africa and other places. At present, the cumulative number of overseas confirmed cases is close to 16 million, the number of existing confirmed cases is more than 5.4 million, and the average number of overseas newly confirmed case is more than 200000 in the past month. In this regard, many epidemiologists have said that the overseas epidemic has not yet reached its peak. It's hard to predict when it will end. As a major producer of masks in the world, China accounts for half of the total production of masks in the world. According to the research data of iMedia Consulting, it is estimated that the total output of masks in China will exceed 100 billion by 2020, and the output value of masks will reach 235.7 billion yuan. In combination, most of the output value comes from overseas markets. At the same time, the demand for medical protective suit and other products in the global market will also increase. For global protective product manufacturers, the market is far from saturated. In this context, the 2020 Shanghai International Epidemic Prevention Materials and Supplies Exhibition will be held in Shanghai from July 30 to August 1, covering masks, melt-blown cloth mask machines, protective suit, isolation clothing, goggles and other epidemic prevention materials and supplies, and will invite institutions and foreign trade companies, buyers, distributors and agents from more than 80 countries to participate. Customers include distributors, agents, import and export companies, local government procurement of epidemic prevention materials, hospitals and so on. As one of the leading medical equipment enterprises, Camel Group is also invited to display its medical positive pressure protective suit, medical positive pressure protective hood, medical silicone protective mask, medical protective hood, mask and other products. The COVID-19 epidemic has opened up a new market for Tuoren Group's medical protective products, especially its positive pressure protective suit products. Camel Group also plans to use three years to compete with 3m in the field of protection. A few days ago, Tuoren built a new city of medical equipment industry, and established the world's production base, reserve base, import and export base of protective products in Tuoren; at the same time,KN95 Face Mask, it established the research and development center, testing center and allocation center of epidemic prevention materials. From product chain competition to industrial clusters, it provides high-quality protection solutions for the country and even the world. Return to Sohu to see more Responsible Editor:. zjyuan-group.com

Original title: How to choose a mask after being confused by the online propaganda of N95 and KN95 masks? 3 steps to avoid the pit Dizzy by online propaganda of N95 and KN95 masks, how to choose masks? 3 steps to avoid the pit The full text is 2182 words and takes about 2 minutes to read. There are many kinds of advertisements for masks. How to choose a mask? Here comes the guide to avoid the pit! There are many kinds of advertisements for masks. How to choose a mask? Here comes the guide to avoid the pit! Recently, a press conference on the prevention and control of the novel coronavirus epidemic in Beijing warned that key personnel in the takeaway and distribution industry, as well as ordinary citizens, should wear N95 and KN95 masks when they are in closed and controlled areas or when they go to hospitals to see a doctor and get medicine. It is understood that at present, the purchase channels of N95 and KN95 masks are smooth, the supply is sufficient, and the vast majority of takeaway riders and citizens are also very cooperative, consciously wearing such masks in relevant scenes to do a good job of protection. However, there are a variety of advertisements for masks on some e-commerce platforms, and some consumers reported: "I thought I bought a KN95 mask, but when I opened the package, I found that it was either loose and poorly wrapped, or there was a strange smell that I dared not wear.". Or it just looks like KN95, but it's actually an ordinary mask. What if I buy the wrong one and can't play a protective role? For this reason, some media reporters interviewed experts in related fields to explain how to choose and buy masks for you. Popular "3D Stereo" and "4D Stereo" on the Internet Even "5D three-dimensional" masks Will the protection effect be better? An insider in the mask production industry said that this kind of propaganda is just a gimmick, and its protective effect still depends on the specific quality and performance of the mask. There are also some businesses playing with the concept. Searching for KN95 masks on an e-commerce platform, you will find that many mask links are under the banner of "medical KN95 masks" and "medical KN95 protective masks", and publicize that they can "guard against viruses" and "coronavirus protection". These masks are cheap, about 10 cents each. However, these masks sold under the banner of "Medical KN95" are packaged with the words "surgical mask". Many experts have confirmed that KN95 masks are all industrial standards, and there is no "medical KN95 mask". An insider in the mask production industry said that this kind of propaganda is just a gimmick, and its protective effect still depends on the specific quality and performance of the mask. There are also some businesses playing with the concept. Searching for KN95 masks on an e-commerce platform, you will find that many mask links are under the banner of "medical KN95 masks" and "medical KN95 protective masks", and publicize that they can "guard against viruses" and "coronavirus protection". These masks are cheap, about 10 cents each. However, these masks sold under the banner of "Medical KN95" are packaged with the words "surgical mask". Many experts have confirmed that KN95 masks are all industrial standards, and there is no "medical KN95 mask". In the face of a wide variety of mask advertisements, How can consumers refine their "golden eyes"? Choose the mask you need? Expand the full text Li Lin, the head of the enterprise who is very familiar with the whole field of mask production and sales, answered the questions for netizens from four aspects. The first move is to see through the "false concept" of businessmen. Li Lin said that consumers often use masks such as N95, KN95 and surgical mask. Among them, N95 mask is a foreign word, which is not called N95 mask in the strict sense in China, but called medical protective mask; KN95 is a mask produced according to industrial standards in China, and its protective effect is basically the same as that of N95 mask, except that it does not have the functions of sterilization and blood splashing prevention of medical protective mask. Surgical mask is a common flat mask, in addition, flat masks are also divided into medical care masks and non-medical masks. Simply speaking, these masks have certain protective effects, but three-dimensional medical protective masks (N95 mask) and KN95 masks are better than plane masks. It should be noted that there is no medical KN95 mask, and there is no "medical KN95 mask". ” Li Lin introduced that some consumers encountered the implementation standard of YY0469 three-dimensional mask, but claimed to be KN95 protective mask,3 Ply Disposable Protective Face Mask, although it made a three-dimensional shape, and used the concept of KN95 to publicize, but the actual implementation is the standard of plane mask. Second, in the regular channels, through the implementation of standards to distinguish the performance of masks. Without professional testing equipment, this is the simplest and most feasible way. Li Lin introduced that N95 is the American standard and KF94 is the Korean standard. In China, the national standard for medical protective masks is GB19083, the executive standard for KN95 is GB2626, and the executive standard for surgical mask is YY0469. The model name of the mask is not directly related to its performance, and the steel seal on the mask is not the standard to judge the performance of the mask. Therefore, when choosing masks, consumers should not only pay attention to the introduction of products, but also see clearly the implementation standards, so that they will not be confused by advertising, and choose the type of masks they need more pertinently. Third,KN95 Mask for Epidemic Prevention and Control, masks with too strong pungent odor should be used with caution. Li Lin said that regular mask products have no smell, or only a slight smell of normal materials. Generally speaking, qualified products produced by regular manufacturers do not need to worry about odor problems. But there are also some substandard products on the market. If you find that the odor is pungent or very uncomfortable after wearing it, the quality of the mask may be problematic. It is recommended that you do not wear it, let alone clean the mask because of the odor, because once the melt-blown cloth, which plays the main protective function of the mask, is damp, it is difficult to play a protective role. Fourth, self-check the tightness of the mask. Li Lin said that even if the quality of the mask is up to standard, the protective mask is not suitable for the wearer's face shape, which will greatly reduce the protective effect. He admitted that a good protective mask will suit most people's faces, but there is no mask on the market that can suit all people's faces. If the mask you buy can't fit the wearer's face well, for example, there is a gap between the bridge of the nose or the face, bacteria or viruses will be inhaled from the leaking part of the body, even if the filter rate of melt-blown cloth can reach 99%. The actual protection effect may not even reach 60%. Li Lin, the head of the enterprise who is very familiar with the whole field of mask production and sales, answered the questions for netizens from four aspects. The first move is to see through the "false concept" of businessmen. Li Lin said that consumers often use masks such as N95, KN95 and surgical mask. Among them, N95 mask is a foreign word, which is not called N95 mask in the strict sense in China, but called medical protective mask; KN95 is a mask produced according to the industrial standard in China, and its protective effect is basically the same as that of N95 mask, except that it does not have the functions of sterilization and blood splashing prevention of medical protective mask. Surgical mask is a common flat mask, in addition, flat masks are also divided into medical care masks and non-medical masks. Simply speaking, these masks have certain protective effects, but three-dimensional medical protective masks (N95 mask) and KN95 masks are better than plane masks. It should be noted that there is no medical KN95 mask, KN95 Face Mask ,free shipping disposable coverall, and there is no "medical KN95 mask". Li Lin introduced that some consumers encountered the implementation standard of YY0469 three-dimensional mask, but claimed to be KN95 protective mask, although it made a three-dimensional shape, and used the concept of KN95 to publicize, but the actual implementation is the standard of plane mask. Second, in the regular channels, through the implementation of standards to distinguish the performance of masks. Without professional testing equipment, this is the simplest and most feasible way. Li Lin introduced that N95 is the American standard and KF94 is the Korean standard. In China, the national standard for medical protective masks is GB19083, the executive standard for KN95 is GB2626, and the executive standard for surgical mask is YY0469. The model name of the mask is not directly related to its performance, and the steel seal on the mask is not the standard to judge the performance of the mask. Therefore, when choosing masks, consumers should not only pay attention to the introduction of products, but also see clearly the implementation standards, so that they will not be confused by advertising, and choose the type of masks they need more pertinently. Third, masks with too strong pungent odor should be used with caution. Li Lin said that regular mask products have no smell, or only a slight smell of normal materials. Generally speaking, qualified products produced by regular manufacturers do not need to worry about odor problems. But there are also some substandard products on the market. If you find that the odor is pungent or very uncomfortable after wearing it, the quality of the mask may be problematic. It is recommended that you do not wear it, let alone clean the mask because of the odor, because once the melt-blown cloth, which plays the main protective function of the mask, is damp, it is difficult to play a protective role. Fourth, self-check the tightness of the mask. Li Lin said that even if the quality of the mask is up to standard, the protective mask is not suitable for the wearer's face shape, which will greatly reduce the protective effect. He admitted that a good protective mask will suit most people's faces, but there is no mask on the market that can suit all people's faces. If the mask you buy can't fit the wearer's face well, for example, there is a gap between the bridge of the nose or the face, bacteria or viruses will be inhaled from the leaking part of the body, even if the filter rate of melt-blown cloth can reach 99%. The actual protection effect may not even reach 60%. The choice of masks is not the more expensive the better. It's not the cheaper the better. Instead, we need to make reasonable choices according to our own actual situation. Buy a mask in 3 steps to avoid the pit! Jin Shubin, an associate researcher at the Institute of Urban Safety and Environmental Sciences, Beijing Academy of Science and Technology, said that as a daily protection, there is no need to blindly pursue high-level protection capabilities, just moderate. The choice of masks is not the more expensive the better, nor the cheaper the better, but a reasonable choice according to their own actual situation. Jin Shubin suggested that the purchase of masks to avoid "entering the pit" can be divided into three steps. The first step is to choose regular purchasing channels such as chain stores, drugstores and online flagship stores, and carefully check the factory name, address, telephone number, production date and validity period on the package. Generally, mask products will be marked with product information on their smallest sales unit, and if the information is missing, we should be vigilant. The second step is to identify the implementation standards. There are many standards for masks, so you don't need to be familiar with all of them. Just remember that GB is the national standard and YY is the medical and health standard. It is usually right to implement these two standards. On this premise, you can combine your own specific needs, such as the current takeaway riders to wear N95 or KN95 masks, you can identify GB19083, GB2626; if it is for children to buy, you can choose to implement GB/T 38880 standard masks. The third step, after getting the mask, check whether the product packaging is intact, whether the product surface is damaged or deformed, if the product has a sealing inspection method, you can check by yourself according to the method. It should also be noted that hair can affect the fit between the mask and the face. In order to get better protection, it is not recommended to grow a beard when wearing a high-level protective mask such as KN95. Jin Shubin, an associate researcher at the Institute of Urban Safety and Environmental Sciences, Beijing Academy of Science and Technology, said that as a daily protection, there is no need to blindly pursue high-level protection capabilities, just moderate. The choice of masks is not the more expensive the better, nor the cheaper the better, but a reasonable choice according to their own actual situation. Jin Shubin suggested that the purchase of masks to avoid "entering the pit" can be divided into three steps. The first step is to choose regular purchasing channels such as chain stores, drugstores and online flagship stores, and carefully check the factory name, address, telephone number, production date and validity period on the package. Generally, mask products will be marked with product information on their smallest sales unit, and if the information is missing, we should be vigilant. The second step is to identify the implementation standards. There are many standards for masks, so you don't need to be familiar with all of them. Just remember that GB is the national standard and YY is the medical and health standard. It is usually right to implement these two standards. On this premise, you can combine your own specific needs, such as the current takeaway riders to wear N95 or KN95 masks, you can identify GB19083, GB2626; if it is for children to buy, you can choose to implement GB/T 38880 standard masks. The third step, after getting the mask, check whether the product packaging is intact, whether the product surface is damaged or deformed, if the product has a sealing inspection method, you can check by yourself according to the method. It should also be noted that hair can affect the fit between the mask and the face. In order to get better protection, it is not recommended to grow a beard when wearing a high-level protective mask such as KN95. Produced by: New Media Department of Minsheng Weekly (ID: msweekly) Source: Beijing Daily Client Editor: Jiang Yuhan Responsible Editor: Liu Yeye Chief Editor: Cui Jingfang "People's Famous Products" Understand different "people's" domestic products and create extraordinary "famous products" for people's livelihood. " Minsheng Weekly Sponsored by the director of People's Daily, it is the only news weekly in China that focuses on people's livelihood. Return to Sohu to see more Responsible Editor: (function() { function getBrandHtml() { var brands = [],Full Body Disposable Coverall, html = ''; for(var i = 0; i < brands.length; i++) { var brand = brands[i]; if(brands.length i+1) { html+= ''+brand.name+''; } else { html+= ''+brand.name+'、'; } } return html; }; if(document.getElementById('linkBtn')){ document.getElementById('linkBtn').onclick = function() { $('#brands').removeClass('brand');$ ( '# tipInfo').text ( 'Real name responded'); $ ('#linkBtn').remove();$ ('.real-response .content').css('line-height', '20px');$ ('.real-response .time').css('line-height', '20px'); }; document.getElementById('brands').innerHTML = getBrandHtml(); }; })();。 zjyuan-group.com

As Marx said, the huge profits make people crazy, and the polypropylene powder which rises 5000 yuan a day deeply hurts the greedy heart of the propylene factory, and the propylene also rises 5000 yuan on Sunday. Compared with the futures price, the current quotation of polypropylene fiber material is even more outrageous. Some traders in the market have quoted 6.7 million yuan per ton, and few of them can really come up with the real thing. At present,Medical Quickly Delivery Antivirus Coverall, the spunbonded non-woven fabric manufacturers are not in stock, and the orders are scheduled for dozens of days, so they do not quote to the outside; the corresponding distributors offer different prices, and the prices of single-layer spunbonded non-woven fabrics are 45,000/ton, 49,000/ton, 50,000/ton and above. As for melt-blown non-woven fabrics, many manufacturers were told that they were out of stock after consultation. The quotations of their distributors were uneven, ranging from nearly 300,000/ton including tax (30-40 days later) to 500,000/ton without invoicing, and even to a high price of 600,000 or 700,000/ton. It is understood that the price of melt-blown cloth in December 2019 is 18000 tons, which has risen by more than 3000% since then, and even tens of thousands of yuan in one day. 03 Chaos highlights many manufacturers' urgent statement It is worth noting that due to the high price of melt-blown fabric products and the mismatch between supply and demand, the current industry chaos has been highlighted. On April 10, including the sales branch of China Shenhua Coal-to-Oil Chemical Co., Ltd. and China Coal Chemical (Tianjin) Chemical Sales Co., Ltd., issued the Statement, explaining the use of two brands of fiber materials produced and sold by the company, and referring to the use of products in special fields without guarantee or responsibility, calling on customers to use them correctly. We will continue to make our own efforts and contributions to the fight against the epidemic. At present, the huge gap in demand for medical non-woven fabrics and their raw materials has resulted in the uneven supply side of the market, which has caused the concern of raw material manufacturers. Recently, Shanghai SECCO, China Shenhua, China Coal Chemical and other enterprises issued a statement that the manufacturers do not provide any guarantee for the processing and application of the polypropylene fiber materials mentioned in the field of melt-blown non-woven fabrics, which can explain some problems. 04 Mask Carnival Disrupts Industrial Chain On April 15, Yangzhong City, known as the "home of melt-blown fabrics", decided to implement "shock therapy" in the melt-blown fabric industry throughout the city, and all melt-blown fabric production enterprises and individual industrial and commercial households in the city stopped production for rectification. Black-hearted industrial chain reshuffle! More than 10 cases of illegal masks were investigated and punished; 867 enterprises were all closed; melt-blown fabrics were inspected nationwide; strategies for personal export of masks;) On April 11, the Publicity Department of Yangzhong Municipal Committee announced the results of quality sampling of eight melt-blown fabric manufacturers randomly selected by Yangzhong Municipal Market Supervision Bureau. Mike noted that the data showed that the bacterial filtration efficiency of melt-blown fabrics produced by only three enterprises met the requirement of not less than 95% in the YY0469-2011 surgical mask. The bacterial filtration efficiency of melt-blown fabrics produced by three enterprises was less than 50%, and the lowest was only 39.4%. The penetration of synthetic blood did not meet the standard requirement of 2mL. After Yangzhong City announced the "shock" shutdown of melt-blown fabric production on April 15, the relevant production machines were transported to Anhui,Full Body Disposable Coverall, Zhejiang and other places overnight, hoping that market supervision, public security and other departments would strengthen supervision and law enforcement and severely crack down on illegal activities. Considering that the unqualified production capacity began to transfer to the surrounding areas, which brought potential quality and safety hazards to the supply of raw materials for the production of epidemic prevention materials such as masks, including Taizhou in Jiangsu, Jinhua in Zhejiang, Anhui and other surrounding market supervision departments, the "Thunder" law enforcement department announced the telephone number for reporting overnight, and said that it would impose top penalties on serious illegal acts such as fake and shoddy. Taizhou, Jiangsu: Announce the Reporting Telephone Cracking down on illegal activities of melt-blown nonwovens overnight According to Mike Foreign Trade, China Quality News recently announced that in order to regulate the production and operation order of enterprises, the Taizhou Market Supervision Bureau of Jiangsu Province issued the Notice of Taizhou Market Supervision Bureau on Further Strengthening the Supervision of Melt-blown Fabric. The notice made it clear that the market supervision department would flexibly use administrative guidance, administrative interviews, reminders and warnings, propaganda and guidance to strengthen quality supervision, price supervision and intellectual product protection, as well as product quality supervision and spot checks, and urge production (circulation) enterprises to abide by the law and operate in good faith. At the same time, we should strengthen communication and coordination with the departments of public security, development and reform, industry and telecommunications, environmental protection and taxation, refine tasks and measures, fulfill their duties and responsibilities, strengthen information sharing, information notification and joint law enforcement, and pay attention to the formation of joint efforts in supervision. Taizhou Municipal Market Supervision Bureau enforces the law on the spot. The pictures are from China Quality Daily. On the evening of April 16, the Taizhou Municipal Market Supervision Bureau, in conjunction with the public security department, launched a special law enforcement action in areas with prominent problems in melt-blown fabric production, investigating and dealing with three suspected unqualified production units, seizing 16 sets of production equipment, more than 160 rolls of finished products and 5.5 tons of raw material polypropylene, with a case value of more than 3 million yuan.  In addition, a batch of undeclared epidemic prevention goods were seized, CE Certificate KN95 Mask ,Against Bacteria Breathable KN95 Face Mask, including disposable protective masks, disposable medical masks, infrared thermometers and so on. The value of the case is about 260000 yuan. Case 3 On April 2, when inspecting a batch of goods declared by a company in Yiyang City for export to Cote d'Ivoire, Daxie Customs, a subsidiary of Ningbo Customs, found that in addition to the declared goods such as wet wipes and plastic bags, 15 boxes of concealed masks were found, totaling 40500. The outer packaging was marked with CE, FDA and SGS certification marks, which was the largest number of concealed masks for export since the outbreak of the epidemic. At present, the goods have been disposed of according to law. Case 4 On April 5, Weihai Customs seized a case of exporting masks without medical device product registration certificate in the freight channel, involving 140000 masks. On the same day, a company in Qingdao declared a batch of masks for export to Weihai Customs, and the goods were declared as disposable non-medical non-woven masks. The on-site customs officer shall carry out unpacking inspection for the batch of goods according to the risk control instructions. After on-site inspection, it was found that the mask packaging label indicated that it was for medical use, which was inconsistent with the declaration.  Mike Foreign Trade Talk, Qingdao Customs, Linyi Customs, State Administration for Market Regulation (SAMR), China Quality News, China Quality News Network,KN95 Face Mask with Five Layers, etc., which are comprehensively compiled by Mike Foreign Trade Talk. Edit | Detect WeChat platform ID: testbbs Reprint please specify return to Sohu, see more Responsible Editor:. zjyuan-group.com

Original title: Precautions for use and maintenance of down-the-hole drill! The application of down-the-hole drill in geotechnical engineering is more and more extensive. It is closely used in open-pit mining, hydropower stations, highways, railways and other infrastructure projects. In order to ensure the safety and reliability of geotechnical engineering construction technology and extend its service life, the usual protection and maintenance of down-the-hole drill is particularly tense. Usually, when protecting the down-the-hole drill, the protection of the diesel engine is very important. The diesel engine of the down-the-hole drill is the original energy source of the hydraulic system, which directly affects the thrust and climbing ability of the down-the- hole drill. Accurate protection and recuperation in real time is the condition for the down-the- hole drill to carry forward its great effect. The following is an introduction to the usual protective rest procedures for down-the-hole drills: 1. The down-the-hole drill shall be stopped immediately after running-in to discharge the engine oil in the oil pan while it is hot ? Clean the oil pan and oil strainer with diesel flushing agent, and change the oil and filter every 250 hours on the down-the-hole drill. 2. When a new down-the-hole drill is purchased, mining dth bit , it is probably that the down-the-hole drill after overhaul must be run in before it is used. ? This operation can ensure the safety, stability and service life of the diesel engine, and the engine can operate for 50 hours under 70% rated speed and 50% rated load; Precautions for normal drilling (1) Each motor shall be free of abnormal sound and the temperature rise shall be normal. (2) Meshing of middle gear is normal, and there is no noise during operation. (3) Adjust the axial pressure of the drilling tool at any time according to the rock condition at the bottom of the hole and the reading of the ammeter to avoid overload of the rotary machine. When the current (provided by Hengwang) exceeds the rated value, the drilling tool shall be taken out immediately, and the operation can be continued only after it is checked and handled normally. (4) In case of serious swing of the carriage, the axial pressure shall be reduced. (5) Stop drilling when the air pressure is lower than 4 kg/cm2. (6) The steel wire rope of the lifting and propelling mechanism shall be arranged in order without bridge pressure, and the rope head shall be firm. Pay attention to adjusting the tightness of the wire rope at any time. (7) In case of drill pipe sticking, it shall be handled according to the specific situation, and the drill pipe shall not be lifted forcibly. In case of thick interlayer or water in the hole, the drill shall be lifted first and then the air shall be stopped (provided by Hengwang), so as not to block the impactor. (8) In case of sudden reduction of wind pressure and no sound of impactor, find out the cause and handle it in time. (9) The limit switch for pushing the cylinder frame shall always be flexible and effective to avoid accidents such as overload or breaking of the wire rope. (10) Slag shall be discharged in time. In case of soft or broken rock formation,dth button bits, it is especially necessary to increase the times of lifting the drill and discharging the slag. Ok, that's all for this issue about drilling rig and www.okcis.cn/hyk-k280208.html. If there is anything else you want to know, you can leave a message with Xiaobian at any time. Xiaobian will do his best to help you. Energy and Chemical www.okcis.cn/LC _ nyhg/Xiaobian will be updated every day for you to return to Sohu and see more. Responsible Editor:. wt-dthtools.com

Original title: What is the drilling technology of PC endurance board? As a good building material and equipment,dth hammer bit,dth drilling hammer, PC endurance board has high strength and durability. Even though it is very good, Borehole Drill Bits ,fastest dth hammer, it also causes losses to users due to a wrong construction method of cracks along nail holes. Therefore, drilling in PC endurance board is a very important technology. Considering that the raw material of the polycarbonate solid sheet will show thermal expansion and shortening, and thus its fixing time has a significant effect, the possibility of quality problems after the item is very high if the nails fixed on the board are not opened directly. It is necessary to pull the extension to reduce the failure rate of the solid board. So, how to process the PC endurance board-drilling operation? The simple way is to use the solid piece piercing bit directly, which can pick a thicker bit. ? Larger or wobbly holes. The diameter of the hole diameter is about two thirds larger than the left and right of the nail being drilled. The rear number is preferably larger. Return to Sohu to see more Responsible Editor: (function() { function getBrandHtml() { var brands = [],down the hole bit, html = ''; for(var i = 0; i < brands.length; i++) { var brand = brands[i]; if(brands.length i+1) { html+= ''+brand.name+''; } else { html+= ''+brand.name+'、'; } } return html; }; if(document.getElementById('linkBtn')){ document.getElementById('linkBtn').onclick = function() { $('#brands').removeClass('brand');$ ( '# tipInfo').text ( 'Real name responded'); $ ('#linkBtn').remove();$ ('.real-response .content').css('line-height', '20px');$ ('.real-response .time').css('line-height', '20px'); }; document.getElementById('brands').innerHTML = getBrandHtml(); }; })();。 wt-dthtools.com