午夜福利电影-成人性生活视频-女上男下动态图-亚色在线-中国女人性猛交-欧美丰满艳妇bbwbbw-中文字幕在线一区二区三区-在线色网站-屁屁影院第一页-久久人人爽爽人人爽人人片av-中文字幕一二-污片视频在线观看-精品无码一区二区三区电影桃花-国产熟女精品视频-aaa一区二区

The mask developed by Atlan has a cool feeling spunbonded non-woven fabric. The cloth surface is soft and close to the skin, and the body feels cool at the same time. Each fiber of non-woven fabric is composed of a skin layer and a core layer. The core layer has excellent temperature resistance and good strength. The skin layer has low melting point and is bonded to each other to form a cloth. As the fiber is composed of continuous long fiber, without binding point, the fiber will not fall off after being made into the mask material, so it has an excellent prospect in children's safety mask; the resistance of this type of spunbonded non-woven fabric is as low as 1 pa, which is suitable for the production of low resistance mask.