Steel
| Sat 19 Apr 2025
Beijing, April 19 -- Chinese Patent for self-flowing siphon filling device for mine filling slurry has been issued to Hebei Iron & Steel Group Mining. This invention was developed by Chen Tiezheng, Guo Zilin, Wang Xiaotao, Ma Youli, Bai Xueyong, Qian Guoyuan, Qi Jie, Ye Zhaobing, Li Wenmin, Wang Wei, Xie Daoxiong and Wang Lei.
..