Material:Polyester (PET), polypropylene (PP), Fiberglass, METAMAX, FMS, P84, Acrylic, PTFE Membrane etc ... Needle Felt Filter Cloth forDust filter bagsMaterial: Polyester (PET), polypropylene (PP), Fiberglass, METAMAX, FMS, P84, Acrylic, PTFE Membrane etc. ... Application: Liquid filtration and industrial dust collection. Similar products: Normal temperature products: PET, pp, anti-static, water and oil ...