... , high purity 3.Good stability Main Advantage:Excellent wear resistance,Weight loss of ball lee of 4ppm,High density, grinding efficiency,No ... ≥900KIC MNm-3/28Compressive Strength Mpa7500Moh's Scale8.5-9Weigth loss of ball ppm/hr4SizesØmm:0.2-3mm,5mm,10mm ...