Transportation
| Wed 22 Apr 2026
Beijing, April 23 -- CRRC Dalian has submitted a patent application for Welding Device for Railway Vehicle Production. Li Jidong, Sun Maodong, Dong Feng, Qu Shengzhi, Meng Zhen, Zhang Long, Deng Kaifeng, Zou-ye Toshio, Fang Jiahui, Zheng Lu, Lin Guidong, Qu Zhiqiang, Zhao He, Gao Quanyu and Hou Min developed the invention.
The ..