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