... are strictly implemented according to ISO Name:Nonwoven Needle Punched Felt Filter Bag-Filter SleeveMaterial:Polyester, polypropylene, Nomex, FNS, ... temperature needle feltProduct range (by application):a. regular needle felt in polyester or polypropyleneb. fiberglass needle feltc. antistatic needle ... gas, cement plants, black carbon, asphalt, food industry.) Polypropylene FELT Fabric Plant Bag