Walnut shell is a granular material processed by degreasing, crushing, screening and other treatments. The surface is microporous, and the filter material has good adsorption effect and polishing. Abrasive. Walnut shell polishing materials are mainly used in hardware accessories, medical supplies, electronic product accessories, glasses accessories, pearl jewelry, buttons, stamping Parts, polishing and deburring, etc., with excellent abrasion resistance, uniform particle size, extra high shell content. Walnut shell is a natural roll Light materials, using it as an abrasive, will not damage the surface of the workpiece, and the polishing effect is good.