... 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 ... , spun finished woven cloth, and non woven needle fabric.Concept:Easier cooperation; Less problems. Trying ...