... the application of compressed air, to form the edited information on work pieces.Major function:(1) Capable to mark Chinese ... , Piston, Cylinder Sleeve, etc.(2) Mechanical Industry: to marking on Mechanical Part, Machine tool, Hardware Product, Steel Tube, Sleeve, ... Steel or PVC material.(6) To mark Dividing Rulers on Dial Plate.Technical Parameters: Marking Contents: Chinese letters, English ...