Tools and Machinery
| Wed 15 Jul 2026
Beijing, July 15 -- CRRC Dalian has submitted a patent application for Welding Auxiliary Tool with Stress Compensation Function. Wu Mingshuo, Pan Hongtao, Zhang Zhidan, Wang Yining, Fan Zhizhang, Tang Shengyong, Bu Qingfu, Cheng Fangliang, Li Wanshun, Li Xin and Guo Ruolin developed the invention.
The patent application number ..