... 6914900000 1.Production Raw Material : This product used high-quality bauxite,coal and other raw material,ceramic sintering,is ... quality bauxite raw material, through a unique grinding, granulation and sintered at high temperature, high temperature, high pressure, high strength, conductivity ... 103 Mpa (15000 psi) 2.Bulk Density : Low Density ; Middle Density and High Density.Cover 0.425-0.85 mm,0. ...