Construction
| Wed 10 Dec 2025
Beijing, Dec. 11 -- CCCC First Highway Fifth Eng Co Ltd and CCCC First Highway Engineering Group have received a patent for High and Cold Tunnel Lining Device. This invention was developed by Zhang Guocai, Du Baocheng, Li Hongyu, Guo Xinrui, Yao Qitao, Fang Kehai, Sun Qingru, Zhao Yongda, Wang Xin, Cong Minghui, Wang Ziting, Luo..