... machine, 3.5" LCDcontroller, 2 marking pins) CNC Automatic 3.5" LCD Touch Screen Marking MachineBasic principlesComputer controls marking-needle to ... , car frame ,automotive chassis, engine, mechanical part, machine tool, metal pipe, gear, pump body, valve, various hardness ... code), circumferential parts marking and connected to database marking.Available in a variety of languages (including English, ...