spray Sand abrasives have the characteristics of short grinding time, high efficiency, good efficiency and low price; moderate hardness, high toughness, good self-sharpening, low sand consumption and can be recycled and reused, and the smoothness of abrasive parts is good; and the chemical composition is stable and wear-resistant. , Acid and alkali resistance. The shell-shaped fracture of the sandblasting abrasive has sharp edges and corners, which can form new edges and edges in the continuous crushing and classification, making its grinding ability better than other abrasives. In particular, its advantages of high hardness, large specific gravity, stable chemical properties and unique self-sharpening have become the first choice for abrasives used in sandblasting process; at the same time, it is an ideal material for sandblasting, rust removal, cleaning workpieces, and grinding and polishing.