... 2.Thickness from 1.6, 1.8mm, 2mm. 3.Air permeability from 0.03, 0.2, 0.3, 0.6, 1.0 ... or PE fiber. Features is Acid and Alkali resistance. Thickness from 1.6, 1.8mm, 2mm.Air permeability from 0.03 ... , 0.2, 0.3, 0.6, 1.0 ... in filter cloth production, spun finished woven cloth, and non woven needle fabric.Concept:Easier cooperation; Less problems ...