... ,such as marble,granite and so onMaterial: Diamond Impregnated ResinSize:4-9"Grits: 50, 100, 200, 400, 800, 1500, 3000Excellent ... stone arc,line,edge grinding, fine grindMade with premium diamonds and designed to achieve a quality finish on all straight or ... team,advanced production line,and inspection equipment,We strictly conform to lS09001-2000 quality control system,and IS014001-2004 environment ...