Pipe
| Wed 26 Aug 2026
Beijing, Aug. 26 -- State Intellectual Property Office of China has awarded a patent to Baotou Iron and Steel Group for Pipeline Valve Replacing Device. Wang Zhentao, Xu Xiaodong, Pei Bin, Cui Feng, Guo Jianxin, Liu Yafeng, Yao Zhiyuan, Zhao Yunfei, Liu Jianzhong, Song Jianhua, Li Guoqiang, Hu Yanying, Liu Qiaoling, Liu Fenglong..