... Name:Nonwoven Needle Punched Felt Filter Bag-Filter SleeveMaterial:Polyester, polypropylene, Nomex, FNS, glassfiber,acrylic,PPS(ryton),P84, PTFE.Description:we offer normal ... . water & oil repellent needle feltFinishing treatment mainly includes: Singed, calandered, PTFE membrane and heat set.Application: liquid filtration and industrial dust ...