... Features: 1) Material: polyester, polypropylene, aramid, P84, acrylic, PPS, PTFE and all compound needle punched filter felt 2) Can ... all kinds of filter bags for liquid, and air filters according to customers' requirements, such as polyester, polypropylene, aramid, ... acrylic, P84, PPS, PTFE and compound filter felt 3) Used for normal ...