... , such as polishing. Specifications:Composition: ZrO2: 65%,SiO2: 35%Density: > 4.0g/cm3Packing density: 2.5g/cm3Hardness: MOH'S scale 7 ... worldSize: Φ0-0.063,Φ0.063-0.125,Φ0.125-0.25, Φ0.25-0.425,Φ0.4-0.6,Φ0.6-0.8,Φ0.8-1.0, Φ1.0-1.2,Φ1.2-1.4,Φ1.4-1.7,Φ1.5-2.0, Φ2.0-2.5 ...