Non-contact marking with the workpiece. Large laser power, energy can be current, software controlled, continuously adjustable. Mark<0.3mm to any depth information, has a security role. The galvanometer scanning system, fast (7 m/s), high accuracy (0.0002mm), and stable performance. 24 hours of continuous work. Low processing costs in large quantities without printing supplies such as ink. Powerful software. Fine lines, only 1/4 the diameter of human hair. Applied materials and industries: Metal engraving and a variety of non-metallic materials. Particularly for precision high occasions.