Security & Protection
| Fri 07 Aug 2026
Beijing, Aug. 7 -- Guoneng Wuhai Energy Huangbaici Mining Co Ltd and CHN Energy Wuhai Energy have submitted a patent application for Goaf Fire Extinguishing Method and Structure. This invention was developed by Li Peng, Cui Xinfeng, Fu Rong, Yang Xipei, Gao Fei, Chen Jixin, Wang Zhiqiang, Guo Zhenke, Zhang Xuezhou, Wang Qiang, L..