... ISO Name:Nonwoven Needle Punched Felt Filter Bag-Filter SleeveMaterial:Polyester, polypropylene, Nomex, FNS, glassfiber,acrylic,PPS(ryton),P84, PTFE.Description ... needle feltProduct range (by application):a. regular needle felt in polyester or polypropyleneb. fiberglass needle feltc. antistatic needle feltd. high temperature resistant ...