We newly developed PCD concrete grinding cup wheel and PCD grinding wing/PCD plates for floor coating removal, epoxy and paint grinding,it is PCD small segments welded on the diamond cup wheel surface,PCD segment size is 3mm×3mm×2.4mm or similar sizes,the PCD cup wheels and PCD wings widely used in many grinding applications,like removal of epoxy (epoxy grinding PCD wheel), glue and resin off of concrete floors (concrete PCD cup wheel)。