... (PP), Fiberglass, METAMAX, FMS, P84, Acrylic, PTFE Membrane etc. OEM is Acceptable. Nonwoven Needle Felt Filter Cloth forDust filter bagsMaterial: Polyester (PET), polypropylene (PP), Fiberglass, ... METAMAX, FMS, P84, Acrylic, PTFE Membrane etc. Application: Liquid ...