... the hard materials ,such as marble,granite Material: Diamond Impregnated Resin diamond polishing padswidely used on polishingthe surface of the ... hard materials ,such as marble,granite and so onMaterial: Diamond Impregnated ResinSize:4-9"Grits: 50, 100, 200, 400 ... quality finish on all straight or contoured surfacesDanyang Huachang Diamond Tools Manufacturing CO,LTD was established in 1980s,and ...