1.Dust filter bag material: POLYESTER, PPS, NOMEX, PE, FIBERGLASS, PP, ARYLIC ... , PTFE coating 1.The material of the dust filter bag: POLYESTER, PPS, NOMEX, PE, FIBERGLASS, PP, ARYLIC. ... requirement including round, trapezoidal, flat and profiled filter bag.3.We can provide two different ... filter bag, the other one is internal filter bag.We can meet the different requirment of media and type! dust filter ...