Metal & Mining
| Wed 22 Apr 2026
Beijing, April 22 -- Spic Guizhou Zunyi Ind Development Co Ltd has filed a patent application for Unattended System of Thermoelectric Dry Coal Shed Grab Crown Block. This invention was developed by Guo Tao, Wei Bisheng, Xiang Huaijiang, Shang Qingkun, Li Wei, Pang Guangyong, Xie Wenjun, Zeng Kai, Yang Qingjing, Wang Xiaoqiang an..