Transportation
| Mon 20 Apr 2026
Beijing, April 20 -- CCCC First Highway Engineering Group and CCCC Zhongnan Engineering have filed a patent application for Welding Device for Railway Arch Rib. This invention was developed by He Li, Li Zhongfeng, Su Chaoyun, Zhang Lijie, Ding Wei, Zhou Min, Zeng Zhaoxin, Yu Yongsheng, Tang Zuping, Zhou Jianzhuo, Tang Siping, Hu..