Concrete polishing pad Engineer stone pad Sunny pad Glass polishing pad Metal bond pad     Home > company>engineer stone pad       * large image These pads are designed and tested to work more aggressive, long lasting on concrete,achieving high gloss.   Specification Model No Size Thickness Grit ESP3 80mm 3mm 50-3000 ESP4 100mm 3mm 50-3000 ESP5 125mm 3mm 50-3000