1.brown aluminum oxide P grit 2.produce sanding cloth, abrasive paper, abrasive sanding belt ... Description:AP-17 It is one type of non-calcined Brown ... belts, etc.Typical Chemical Analysis:Al2O3 95.56%TiO2 2.25%SiO2 1.08%Fe2O3 0.08%Physical Properties:Color ... , FEPA-standard 43-1:2006 or ISO 6344-2: 1998 BFA brown aluminum oxide