... 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 ... fields:1) The fume and smoke treatment and particle removing system in metallurgy plant, alloy plant, steel works, moulding factories, ...