... but also for repairing, grinding, polishing, crystallizing millstones.planetary concrete floor polishing machine HWG 78 has the quickest ... Ideal for:1, For coarse grinding, medium grinding, fine polishing, crystallization, preparation, maintenance.2, Polish concrete, marble, ... .3, Remove painting, coating, epoxy, urethane, glue, polyurethane, mastic with PCD tools.Parameter: Weight 240KG Extra (Iron ...