Corundum sand is used to produce brown corundum
by electrofusion of high-quality bauxite, while high-quality aluminates are used to produce powdered alumina and white alumina. Their natural crystal structure gives them high hardness and fast cutting performance. At the same time, they are often used as raw materials for fixed and coated abrasives. Corundum sand can be recycled many times. The number of cycles is related to the material grade and specific process. Most standard abrasive blasting equipment can be used. Alumina is suitable for a variety of wet and dry treatment processes, and can polish the rough surface of any workpiece finely. It is one of the most economical abrasives. This sharp synthetic diamond abrasive has the hardness second only to diamond, and is especially suitable for use when there are strict requirements for iron pollution. It is used for the roughest cutting, and can also be made into a pebble shape to process precision-sized workpieces to achieve extremely low roughness. Because of its high density, sharp, rhomboid structure, it is one of the fastest cutting abrasives currently.