Construction
| Fri 12 Dec 2025
Beijing, Dec. 12 -- Henan Water Env Survey and Design Co Ltd and Yellow River Institute of Hydraulic Research have applied Chinese patent for Adjustable Top Die of Tunnel Lining Trolley. Hu Zuolong, Zhang Wenmin, Shen Zhenzhou, Wang Feng, Fan Haibo, Yang Li, Yao Jianshun, Liu Yongfeng, Liu Yingjun, Yao Wenyi, Feng Feng, Liu Wenx..