Metal & Mining
| Tue 04 Aug 2026
Beijing, Aug. 4 -- CHN Energy Group Ningxia Coal Industry has been awarded a patent for Crude Argon Rectification System. This invention was developed by Wang Wenlong, Huo Yuan, Liu Lei, Li Dengtong, Meng Weining, Tian Xingbing, Sun Shaohua, Li Jichong, Song Xiaoli, Zhen Shuai, Yang Zhenyan, He Yu, Wang Ting and Zheng Qidi.
T..