Sandblasting is widely used. It can remove the rust and small burrs on the surface of the workpiece. After sandblasting, the surface cleanliness of the workpiece is improved and becomes smoother. Not only workpieces, but also products such as stainless steel plates, aluminum alloy plates and frosted glass can be used for polishing, and even jeans and other fabrics can be used for sandblasting. The main material used for sandblasting is brown corundum sand, because it is not only of high quality and low price, but also of good effect after use, and the original color of the workpiece becomes more beautiful.