... PTFE Membrane etc. OEM is Acceptable. Nonwoven Needle Felt Filter Cloth forDust filter bagsMaterial: Polyester (PET), polypropylene (PP), Fiberglass, METAMAX ... repellent, PET membrane, Acrylic. High temperature products: FMS, Nomex, PPS, PTFE, fiberglass, p84 fiber.Faithful Manufacturer is ... supposed to be your constant supplier.Specialized in filter cloth production, spun finished woven cloth, and ...