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Sponge sandpaper applies to polishing & grinding & cutting the surface of mobile phone shell for a variety of brands, it is suitable for the working procedure of the precision hand grinding & machine grinding & specific polishing which is included fine deburring, healing of surface scratches, burrs grinding and wire clipping etc.It is used for the polishing of the surface of mobile phone shell, and the elastic sponge is not easy to scratch the surface of product, the brown corundum abrasive at high temperature makes the cutting force much  faster and improve the abrasion resistance. In 2014 our factory has brought in new equipments which could produce a whole roll of sponge sandpaper with biggest size 1m * 100m.