四川少妇被弄到高潮,色偷偷av老熟女,国产又粗又猛又爽又黄的视频在线观看动漫

Apparel fabric filtration application

2020-02-07 13:45:02 2027

Apparel fabric applications include outdoor mountaineering clothing, tents, rain boots, etc. PTFE microporous membrane has excellent hydrophobic properties and micron-level pore diameters, which make it have excellent waterproof performance and good air permeability. Therefore, when used in apparel fabrics, Not only can effectively isolate the rainwater from infiltration, but also can promptly remove the water evaporated from the body to keep it comfortable. A large number of try-on experiences at home and abroad show that when the air permeability exceeds 30mm/s, the windproof performance is lost, and the air permeability of the film under 10 wind pressure is 28.85mm/s, which still does not exceed 30mm/s. Has excellent wind resistance.