Metal & Mining
| Tue 27 Oct 2026
Beijing, Oct. 27 -- Jinan Wolves Tech Co Ltd has obtained a patent for trestle flushing device in open pit coal mine conveying gallery. This invention was developed by Yi Xinqi, Liu Xiaoqian, Zhu Shilin, Sun Yankun, Zhuang Ziyou, Wu Zhonghua, Liu Benli, Cheng Dafang, Ning Wei, Xin Qiang, Zhang Chuanxiao and Yi Hongda.
The pat..