... resistance 3.excellent wear and tear resistance Nonwoven Filter Bag1.polyester anti-static filter cloth 2.acid resistance 3.excellent wear ... and tear resistanceNonwoven needle punched Filter bag 1)Materials: Polyester, Nylon, PP, PE, PTFE, Nomex, ... Dust treatment, purification and collection in electronics, mining, foodstuff processing, flour and timber processing.