... 2,Diamond tool 3,siemens motor,220V 4,for concrete,terrazzo planetary concrete floor polishing machine is not only grinding and ... is good for grinding the large area;2,All gear box and motor is made of Aluminum alloy,which is ... , medium grinding, fine polishing, crystallization, preparation, maintenance.2, Polish concrete, marble, granite, terrazzo with various grit of diamond metal, resinbond ...