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Needle Felt Crusher

Basalt fiber needle felt the basalt fiber needle felt is designed with the basalt single fiber interspersing with outoforder interlacing, which form the structure of astatic threedimensional aperturewing to using thinner fiber of 79um, bigger than the superficial area, with void fraction of about 80 and no boron, it can be used for the filtrating and purifying of highquality air.