... 4,for concrete,terrazzo,epoxy grinder and polisher is not only grinding and polishing concrete, marble,granite, terrazzo, ... to 2000 rpm. The motor is 15 hp, and working area is 700 mm, so it is most ... It is good for grinding and polishing in large area, and greatly consume time and labor.Performance:1,With 15 ... Packing 1000*900*700mm The rotation way of grinder and polisher HWG 70: The diamond tools to be ...