Tools and Machinery
| Sun 24 May 2026
Alexandria, May 25 -- Guizhou Power Grid has filed a patent application for Indoor Rockfall Motion Test Device and Ramming Structure. This invention was developed by Wu Yu, Zheng Shuyi, Li Yi, Wu Jianrong, Zheng Xiaohu, Jiang Jibin, Liu Qing, Zhang Qili, Huang Huan, Nie Xianglun, Huang Jie, Hu Rongjun, Wu Shouchang, Mao Xianyin,..