... .acid resistance 3.excellent wear and tear resistanceNonwoven needle punched Filter bag1)Materials: Polyester, Nylon, PP, PE, PTFE, Nomex ... Usage: Air Filtration, Liquid filtration, Powder filtrationP84 (Polyimide) filter felt (the domestic and import fiber)base cloth and ... high fiber surface area, therefore, which is a small delivery head, and better filter effects. The main characters are thermal ...