... is electrically fused in an arcfurnace from a mixture of bauxite at high temperature. It ... high hardness, strong tenacity, good self-sharpening, better cohesiseness, higher durability, less heat generated in ... and polishing stainless steel, metal works, optical glass, bamboo or articles.Brown Fused Alumina is used ... is made by alumina as raw material, which is melted at high tempreture. The hardness ...