... your request 4. Good Performance Polishing Brush1. Used for the surface grinding of marble, man-made stone, granite, etc. 2. To get antique ... brush body. 4. Products are used in industrial polishing lines, mobile floor polishing machines and hand grinding equipment.5. High density and ... #,60#,80#,120#,180#,240#,320#,500#,800# High Quality Polishing Brush For Marble / Granite / Concrete