Metal & Mining
| Fri 19 Jun 2026
Beijing, June 19 -- China Coal Research Inst and Shandong Erduo New Mat Co Ltd have submitted a patent application for Hole Sealing Blasting Tapping Equipment with Positioning Mechanism. Deng Zhigang, Su Zhenguo, Han Lin, Hou Yukun, Zhang Guanghui, Jiang Junjun, Bi Huijie, Mo Yunlong, Cao Junzhi, Li Shaogang, Wang Hongwei, Zhao ..