... make machines according to your requirements.Basic Principle: Computer controls marking-pin to move on the traces of pre-edited ... Optional Marking Mode: Line Marking or Dot Marking (5) Optional Connection Mode: USB port or Serial port (6) Several sets of ... Brand, etc. , on Vehicle Body, Frame, Base Plate, Pillar, Engine, Connection Rod, Cylinder, Piston, Cylinder Sleeve, etc.(2) Mechanical Industry: to ...