Metal & Mining
| Fri 24 Apr 2026
Beijing, April 24 -- Minmetals Mining Anhui Eng Design Co Ltd has applied Chinese patent for Open Stoping Subsequent Filling Mining Method Under Unstable Ore Rock Condition. Hu Like, Wu Chengfang, Sun Erwei, Kong Kewei, Liu Ren, Wang Renzhen, Liu Tianqi, He Gang, Zhang Hong, Qin Jiabin, Liu Wei, Bai Wei, Gui Huaibin, Zhou Yongga..