Nonwoven Filter Bag 1.polyester anti-static filter cloth 2.acid resistance 3. ... resistance 3.excellent wear and tear resistanceNonwoven needle punched Filter bag 1)Materials: Polyester, Nylon, PP, PE, PTFE, Nomex, Fiberglass, etc ... plaster6) Dust treatment, purification and collection in electronics, mining, foodstuff processing, flour and timber ...