Transportation
| Sat 30 Aug 2025
Beijing, Aug. 30 -- State Intellectual Property Office of China has awarded a patent to China Railway No.5 Engineering Group Mech Engineering Co Ltd and China Railway No.5 Engineering Group for Foundation Pit Protective Fence. Li Han, Yan Hao, Zhang Min, Jin Duo, Chen Mingnan, Huang Yong, Li Shiming, Wu Yanbin, Fu Yongxin, Zhao ..