Dalian sanding and derusting said that walnut sand is refined through multiple processes after strict screening and classification after walnut shell is broken. Its shape and particles meet industrial standards! Its hardness is low and does not contain silicon. It can be used to clean gasoline and diesel engines! Because of its good toughness and elasticity, it can be used to clean metal, alloy and electronic plastic workpieces without damaging the surface of the workpieces! Walnut sand is used for cleaning and polishing molds, instruments, motors, plastics, gold and silver jewelry, hardware, glass, glasses, watches, golf clubs, hairpins and buttons. It is mainly used in sand blasting cleaning industry. If there are painting, rust, chemical materials and other workpiece surfaces, it can remove residues and smooth the surface! Because of its good durability and elasticity, and can be mixed with silicon carbide abrasives, it is also an ideal polishing and grinding material!