... drive motor 3.Ball screw transmission Application:Jade, copper, aluminum, iron, metal stamps, badges, signs, small pieces of steel, PVC, acrylic ... conveniently.The whole machine is onetime casted by cast iron, bed weighing nearly 2t,working steady.XYZ axes get ... phone service, lifetime maintain hot sale metal cnc machine engraving jade,copper, aluminum, iron, metal stamps, badges, signs, small pieces ...