... acid-resistance 2.fair alkali-resistance 3.high strength filter cloth,which made of polyester fiber (PET), can be divided ... can reach less than 5 microns.Polyester staple fiber filter cloth series,120-7(5926),120-12(734),120-13, ... 16(3927),858,208(tube),729(tube),740Polyester filament filter cloth series,60-7(621),60-8(130),60-9( ... Filament191.2134342.43026228873.732.237.80.65 industrial filter cloth