grinder and polisher 1,Electric heavy duty 2,Low cost high quality 3,large gear polisher 4,for concrete,terrazzo,epoxy grinder and ... granite, terrazzo, but also for repairing, grinding, polishing, crystallizing millstones.grinder and polisher HWG 70 has the quickest motor speed, from ... Noise 65DB Packing 1000*900*700mm The rotation way of grinder and polisher HWG 70: The diamond tools to be chosen ...