... floor polishing machine 2.Grit:50#~3000# 3.D:3 ",4"~12" 4.Smooth and shiny surface &High qual Name: Diamond DiscDiamond Floor ... Polishing Marble, Granite and Concrete, such as single head, two head and three head rotary machine, for grinding all kinds of floor from ... surface to make smooth and shiny surface.Specifications: Grits50#, 60#, 100#, 150#, 200#, 300#, 400#, 500#,800#, 1000#, 1500#, 2000#, ...