Polishing Brush 1. High Quality with Competitive price 2. MOQ : 10 PCS ... with abrasive grit, which are anchored tightly in a polypropylene brush body. 4. Products are used in industrial polishing lines, mobile floor ... #,80#,120#,180#,240#,320#,500#,800# High Quality Polishing Brush For Marble / Granite / Concrete