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