Construction
| Wed 10 Dec 2025
Beijing, Dec. 11 -- Beijing Qinghe Water Conservancy Construction Group Co Ltd has applied Chinese patent for Combined Cofferdam. Cheng Haifeng, Li Yuchen, Liu Kai, Wang Tianyi, Yang Zhen, Zhang Lingxiao, Gao Ning, Wang Gaoyue, Wang Enhong, Wang Xu, Zhang Qiang, Li Jinbo, Zou Shuming, Li Tian, Chen Pengkun, Zhou Xing, Chen Hao a..