Metal & Mining
| Thu 22 Oct 2026
Beijing, Oct. 22 -- Yunnan Phosphate Chemical Group has obtained a patent for multifunctional mining drilling rig. This invention was developed by Li Shujian, Xiao Zhe, Liu Yinghui, Hou Jing, Yang Jianguang, Zeng Qing, Li Tao, Shi Jieli, Pang Jiantao, Ding Wenjun and Yuan Mingli.
The patent application number is CN202520247170U..