Black corundum sand (also known as low aluminum corundum sand, iron sand powder) is a new polishing material, which is refined by arc furnace with high quality bauxite as the main raw material. And then through a complete scientific processing program for processing. The product is characterized by moderate hardness, high toughness, high temperature resistance and stable thermal performance. The company's black corundum abrasives have the advantages of concentrated basic grains, strong cutting force, high toughness, good wear resistance and high work efficiency. It is the best product for grinding, polishing and sandblasting stainless steel products. Its products are widely used in tableware industry, electroplating industry, metal surface treatment industry, glass products industry. At present, it is widely used in the fine polishing of medium hardness materials such as stainless steel tableware, lamps, lighting, motorcycle parts, automobile accessories, etc