... diameter:125mm High quality diamond floor polishing pads:1, Grit: 30,50,100,150,200,300, ... use,grinding smoothly ,quick speed and long life.5, Effective in the process of grinding and polishing ... concrete floor Item No FPP125-1 Thickness10mm Diameter125mm Grit 30,50,100,150,200 ... requested2012 China Xiamen International stone exhibition: 5 inch diamond resin floor abrasive pad