Metal & Mining
| Wed 15 Apr 2026
Beijing, April 16 -- State Intellectual Property Office of China has awarded a patent to CHN Energy Wuhai Energy and Xichang College for Self-propelled Boot Washing Device for Coal Mine. Lyu Wenbo, Zhou Lianchun, Shi Yinbin, Li Weiwei, Gu Na, Liu Hongfeng, Wang Haibo, Yang Ran, Cui Xin, Yang Xiaoming, Liu Yanming, Li Xiaojing an..