... industrial surface ground 3,electric heavy duty 4,aluminum wheel diamond floor grinder is a perfect choice for grinding concrete floor ... and polish concrete, marble, granite, terrazzo with various grit of diamond metal,resin bond;2, Remove painting, coating, epoxy, urethane, ... Packing 1000*900*600mmThe rotation way of HWG 60:The diamond tools to be chosen:The effect of grinding and polishing:.... HWG ...