Grade,manufacturing,sizes,standard and usage of brown fused alumina
Brown fused alumina is made from high quality bauxite,with high hardness and good toughness. First,grades of brown fused alumina. In China market,as I know there are five grades of brown fused alumina according to the Al2O3%,which are separatly as follows: Grade Al2O3% First 93.0-97.0% Second 85.0-92.0% Third 70.0-80.0% Fourth 60.0-70.0% Fifth 50.0-60.0% Secondly,Manufacturing process of