... frequency controller(including grinding head11kw×8discs), the merits of energy efficient and smooth operation make the machine suitable for polishing ... , such as cement brick, Marble ,floor tiles and terrazzo tiles,etc.2.The machine adopts imported pneumatic components, which adjust ... control 6,Biggest products:500×500 7,Machine power:11kW×8+4kW 8,Weight:9T Floor grinding and polishing machine