... aramid, P84, acrylic, PPS, PTFE and PTFE membrane surfac filter bags 1.Filter bag is exquisite sewing.. 2.Material: polyester, fiberglass, aramid ... the users requirement including round, trapezoidal, flat and profiled filter bag. 3.We can provide two different kinds of the ... filter bags, one is external filter bag, the other one is internal filter bag.We can meet the different requirment of media ...