Our Company can offer all kinds of needle felt Material: polyester (PET), polypropylene (PP), acrylic, fiberglass, Nomex, P84, PPS (ryton), PTFE Finishing treatment mainly includes: Singed, calandered, PTFE membrane and heat set. Application: industrial dust collection (blast furnace gas, cement plants, black carbon, asphalt, food industry.) Filter bags provide a cost effective solution for many industrial operations. They are highly versatile and efficient in dust and fume collection.