alumina ball,alumina brick,alumina bead,alumina powder All demands can be reached alumina ball,alumina brick,alumina bead,alumina powder descriptionChemical CompositionPowder Specification:Al2O3 (% ) contains 90 ,92,95,97,99Fe2O3 (≤ % ) 0.1, 0,1, 0.1, 0.1, 0.05Water (less% ) all less 0.3Lossen Density ( g/cm3 ) 0.95~1.2Partcile Size (mesh) 60~300Fire Temperature (centigrade) 1580 ,1620 ,1650 , ...