... pretreated granite limestone travertine or artificial stone Silicon carbide round disc abrasive Brushes are used for deburring and polishing marble, granite, limestone ... , the surface can get the archaized effect.The silicon carbide abrasive brushes adopt from DuPont U.S.A(Nylon 612 with ... #,24#,36#,46# ,60#,80#,120#,180#,240#,320#,500#. abrasive nylon round disc brush