Through the Zhejiang Provincial Science and Technology Information Research Institute, Wenzhou City, quality technology testing and scientific research institute testing, Chinese Academy of Sciences, academician Yao Jianquan, Optical Society of China, director of the Laser Processing Professional Committee, Professor Zhang Qingmao, deputy director of the Laser Processing Engineering Research Center, Professor Tang Xiahui, and other members of the appraisal committee appraisal,the overall technology is at the international advanced level, in which the multi-painted layer of removal precision and efficiency is at the international leading level.