Security & Protection
| Thu 05 Nov 2026
Beijing, Nov. 5 -- Zhongkan Metallurgical Geotechnical Investigation Design Research Inst Co Ltd has obtained a patent for rock slope spider man operation safety pile. This invention was developed by Zhang Hui, Jiang Zhilin, Li Lingjie, Hou Linghui, Li Ximing, Jia Shuai, Li Zhenmin, Niu Qiang, Wang Gang, Li Tian, Zhang Xufeng, L..