... , but also for repairing, grinding, polishing, crystallizing millstones.diamond floor grinding machine HWG 70 has the quickest motor speed ... various grit of diamond metal, resinbond.3, Remove painting, coating, epoxy, urethane, glue, polyurethane, mastic with PCD tools.Parameter: Weight ... *900*700mm The rotation way of HWG 70: The diamond tools to be chosen: The effect of grinding and polishing:.... ...