... .high efficiency, low resistance 2.ISO9001 certificate 3.Anti corrosion 4.Environment friendly ZF melt-blown non-woven fabric is a new ... filter material made by the latest melt-blown tech, and post processing...*Use high fat soluble PP ... and light, stable anti corrosion, meet clients demand.*Used in primary, medium, high-efficiency filter, air purifier, and dust collector.*Models and ...