1. Ultraviolet laser not only has good beam quality, but also has a smaller focusing spot and can realize ultra-fine marking; it has a wider range of applications. 2. Due to the small focusing spot and the small processing heat-affected zone, the ultraviolet laser can perform ultra-fine marking and special material marking. It is the first choice for customers who have higher requirements for marking effect. 3. Ultraviolet laser has a very small heat-affected area, no thermal effect, and no material scorching problem; fast marking speed and high efficiency; stable performance of the whole machine, small size, low power consumption and other advantages. 4. In addition to copper materials, UV lasers are suitable for a wider range of materials. 5. The spatial controllability and time controllability of the laser are very good, and the freedom of the material, shape, size and processing environment of the processing object is very large, especially for automatic processing and special surface processing. And the processing method is flexible, which can not only meet the needs of laboratory-style single-item design, but also meet the requirements of industrial mass production.