Construction
| Sat 14 Nov 2026
Beijing, Nov. 14 -- State Intellectual Property Office of China has awarded a patent to Zhongji Construction Survey Group for Siphon Drainage Device. Hou Kaijun, Zhang Ran, Gao Zhe, Yang Linshen, Cheng Xianwei, Xu Fengguang, Xin Jiang, Wang Houchao, Li Shifan, Zu Zhiming, Bian Yujie, Han Jianbo, Lu Jinghua, Chen Ersong, Wang Del..