Metal & Mining
| Mon 09 Feb 2026
Beijing, Feb. 9 -- Huating Coal Group and China University of Mining have applied Chinese patent for Self-adaptive Pre-pressure-relief Danger-relieving Device for Deep Mine. Ma Xiaowei, Zhang Yuliang, Cao Anye, Liu Shen, Liu Haishuang, Zhang Cheng, Guo Weicheng, Zheng Fuli, Gao Jiangxiong, Cao Fei, Zhao Tao, Ling Xujie, Gao Chun..