Metal & Mining
| Sat 17 Oct 2026
Beijing, Oct. 16 -- Shanxi Province Shouyang County Duanwang Coal Ind Group Co Ltd has secured a patent on Coal Mine Inspection Robot. Chang Jin, Yu Rungui, Ji Kaixiao, Liang Bingbing, Ji Heping, Liu Fangzhong, Zhao Zengrong, Su Yanpo, Geng Yongqiang, Han Guanqiao, Ji Guanwei, Wang Shanshan and Li Jianwen developed the invention..