... 3.Grit load 30% 4Nylon 612 Diam.130mm snail lock abrasive nylon silicon carbide brush.Used in side grinding machine and step retreading machineAbrasive ... , travertine and so on. Through grinding the surface of the stone, it could get the archaized effect.It adopts from DuPont ... #,46# ,60#,80#,120#,180#,240#,320#,500#.MachineCraft pictures snail lock abrasive nylon silicon carbide brush