We are offering polyester needled felt non-woven filter media using acupuncture techniques, and by the heat-setting and other treatment methods are made widely used industrial catch dust, dust control and so on. Polyester needled felt has good air permeability and after heat treatment, surface smooth, it is not easy deformation, easy cleaning. Features of polyester needled felt name polyester needled felt application: blast furnace pulverized coal injection coal station collection, electric copper dust at the scene. Lead-zinc sintering machine head dust, zinc volatile kiln flue gas, aluminum type sj-n-pe500-1 weight(g/m2) 500 thickness& 65288;mm& 65289; 1.80 breaking strength (n) warp/weft & 8805;800/1200 elongation (%) warp/weft & 8804;35/50 permeability (m3/m2/min) & 8804;10?3 working temp.(& 8451;) continuous / instant 130/150 max shrink rate at 150& 8451; <2.0% resistance to acids good resistance to alkalis good surface treatment heat setting.