... . Standard Sizes: Size: 5*5,7*7,10*10,12*12,12.7*12.7, 15*15,20*20,25*25,30*30 3 ... .65HardnessMohs Scale99Anti-Compression Strength MPa≥2000≥2250 ColorWhiteWhite Standard Size (mm)φ12×12 φ20×20 φ30×30 φ50×50 4. AdvantagesFor high viscosity ... conventional lower quality media Abrasive ceramic cylinder (size: 40*45 mm)