Metal & Mining
| Tue 13 Oct 2026
Beijing, Oct. 13 -- Chinese Patent for High-altitude Operation Device has been issued to China Second Metallurgy Group. This invention was developed by Cong Jiqiang, Yan Rongchang, Sun Lizhi, Liu Shengli, Wang Xingwang, Liu Wenjing, Sun Wenhao, Tian Xiaomeng, Liu Yujie, Zhao Chenze, Zhou Yanping, Fan Qin and Zhang Yue.
The pa..