Metal & Mining
| Tue 22 Sep 2026
Beijing, Sept. 21 -- Weihai Hengbang Mining and Metallurgy Dev Co Ltd has submitted a patent application for Device and Method for Recovering Non-ferrous Metals from Copper Smelting Slag. This invention was developed by Che Zelong, Yu Zhixiao, Yu Mingfei, Song Yanhua, Wang Yang, Zhu Jindan, Qu Jiantao, Cui Shusen, Wang Weinan, G..