Dear Sirs, Xinxiang Shangshangmo Co.,Ltd is the professional manufcture of PTFE (polytetrafluoroethylene) membrane. The products are widely used in cement, steel, metals, chemicals, paints, oil, pharmaceutical etc industries. Mainly products as follows: 1. PTFE Membrane for cothes: Breadth: 63 inch water vapour permeability (ASTM E96 BW): 12000 2.PTFE membrane for liquid filtration: filter rating: 0.2 ; 0.45 ; 0.8 ;1.0 micron. 3.PTFE membrane for gas filtration: Filter rating: 0.01~5 microns; thickness: 5~100 microns. Air permeability: 10~80L/m2.S 4.HEPA grade of PTFE membrane & multiple filter media: Filter rating: 0.3micron > Filter effienicy: 99.99% 5. HEPA grade of PTFE membrane & multiple filter media: Filter rating: 0.12micron > Filter efficency: 99.999% We sincerely offer high quality products and best service to our clients both at home and abroad ! and would like to co-operate and communicate with friends on the filtration items, for mutual deveopment and magnificent! Xinxiang Shangshangmo Co.,Ltd Mr.Niuyunfeng