... customized)Marking Speed2-4 per second (4 # characters)Marking Depth0.01-2mm (depending on material hardness may be)Marking Accuracy4μ ... as power supply, LCD, motherboard, etc..4: Consumption of low-function fan less motherboard, motherboard fan wearing solve ... chassis, connecting rod, engine, cylinder, and various mechanical parts, machine tools, hardware, metal pipes, gear, pump, valves, fasteners, ...