Chemical Name: 75%-85% Alumina Grinding Ball Synonyms: Ceramic Ball, Alumina Grinding Media, Alumina Ceramic Grinding Ball Molecular Formula: Al2O3 CAS No.ï¼?1344-28-1 H.S. CODE: 69091200 Characteristicsï¼? (1) The main material of Alumina Grinding Ball is high purity quality alumina, which will... url:http://www.china-activatedaluminaball.com