... 80mm (special format can be customized)Marking Speed2-4 per second (4 # characters)Marking Depth0.01-2mm (depending on material ... gas source or compressor air source)Temperature-20 °C - 55 °CRelative Humidity25 °C when the "85%Power SupplyAC220v ± 10%, 50 ... , chassis, connecting rod, engine, cylinder, and various mechanical parts, machine tools, hardware, metal pipes, gear, pump, valves, fasteners, and ...