... ,P84,acrylic,PPS,PTFE and all compound filter bag features:1) Material: polyester, polyprolene,aramid,P84,acrylic,PPS,PTFE and ... all compound needle punched filter felt.2) Can do all kinds of filter bags for ... liquid,and air filters according to customers' requirements,such as polyester,polypeopylene,aramid,acrylic, ...