... floor were moderate milling, cleaning, picking operations 2 Features1).With milling depth dial,milling depth can be precisely controlled;2 ... device and external water source;10).Patented drum support bracket with quick disassembled design, installation or removal of the tool ... lines and coatings;5.Mildly nap for concrete, asphalt road, epoxy resin, wear-resisting ground; 6.Remove the old floor surface ...