lapping abrasive powder Al2O3: 95.5% min SiO2: 0.8% max Fe2O3: ... .08% max TiO2:2.3% maxCaO: 0.4% max Lapping abrasive powderProperties: The bauxite, coke (anthracite) as main raw material, by ... / cm³, high temperature, high refractoriness 1850°C.Usage:Made for abrasive, suitable for grinding high tensile strength metal, such as a ... .85TL-3≥70≤4.3≤1.53.85 Superior lapping abrasive powder Brown color