... , to work pieces at a high frequency under the application of compressed air, to form the edited information on work ... Brand, etc. , on Vehicle Body, Frame, Base Plate, Pillar, Engine, Connection Rod, Cylinder, Piston, Cylinder Sleeve, etc.(2) Mechanical Industry ... , English letters, Arabic numbers, Vector graphs and Coders. Size of Letters: Adjustable Marking Speed: 100-7000mm/min (adjustable, marking ...