Metal & Mining
| Wed 11 Feb 2026
Geneva, Feb. 12 -- Ccteg Chongqing Res Institute has sought patent for Mining Drilling System. This invention was developed by Xin Dezhong, Wan Jun, Chen Hang, Wang Qingfeng, Liu Xiaohua, Xiao Yuqing, Lv Jinjun, Yang Lin, Ma Zhengang, Zhang Bo, Zhang Shizhai, Dou Xin, Tang Min, Pu Jian, Chen Keyu, Wan Yuan, Wang Xing, Lu Shiping..