成人做爰在线观看丨久草97丨在线日韩av免费永久观看丨最新av中文字幕无码专区丨国产初高中生真实在线视频丨亚洲人成网网址在线看丨少妇性色淫片aaa播放丨99色精品丨欧洲国产伦久久久久久久丨国产在观线免费观看久久丨日韩精品色呦呦丨国产做爰视频免费播放丨亚洲午夜福利精品久久丨少妇裸体淫交免费视频网站丨日韩特级黄色片丨成年人网站免费在线观看丨亚洲国产成人综合一区二区三区丨另类图片婷婷丨aa一级视频丨欧美视频91丨精品少妇theporn丨国产精品一区二区无线丨成人黄色免费在线观看丨aⅴ色国产 欧美丨免费人成在线视频无码软件

The company has a 100,000-level purification workshop, equipped with 2 flat high-speed equipment, 20 KN95 equipment, 4 meltblown wiring, and a full set of testing equipment such as salt and oil filtration testing equipment, blood penetration meter, respiratory resistance tester and tensile tester. The factory quality of each mask is improved to protect the safety of consumers.

1. Medical disposable mask 

Description: It has a three-layer structure: 1 layer of meltblown fabric, 2 layers of non-woven fabric, and the filtration performance reaches ffp2 standards. The non-woven fabric and meltblown fabric are all produced on-line by our company, and the quality is all tested in real time. In line with national standards and domestic medical standards.

2. KN95 mask
Description: It has a 5-layer structure: 2 layers of non-woven fabrics, 2 layers of meltblown fabrics, 1 layer of hot-air cotton. The product categories include built-in nose bridge strips, external nose bridge strips, external valves, and internal valves. In line with national standards, EU CE standards, the products sell well at home and abroad.