Metal & Mining
| Sat 04 Jul 2026
Beijing, July 4 -- State Intellectual Property Office of China has received China University of Mining and Huaibei Mining patent application for Device for Treating Miss-fire Phenomenon of Pre-splitting Blasting of Deep-hole Roof. Zhu Lezhang, Feng Yongjie, Wang Sheng, Han Junfei, Xu Jiasen, Tong Yuan, Meng Gang, Zhang Shiji, Ya..