Green silicon carbide is suitable for processing hard alloy& cedil; metallic and non-metallic materials with hard and brittle feature such as copper& cedil; brass& cedil; aluminum& cedil; magnesium& cedil....

Black silicon carbide is produced at high temperature in an electric resistancetype furnace with quarts sand and petroleum coke as its main raw materials. Its hardness is between fused alumina and....

White aluminum oxide has white color and a little higher hardness and toughness comparing with the brown one. The grinding tools made of this material are suitable for fine grinding of high carbon....

Brown fused alumina is fused and crystalized under high temparature from a mixture of bauxite and other raw materials. It is characterized by its high hardness, good toughness and sharp shape in size....