Metal & Mining
| Thu 15 Oct 2026
Beijing, Oct. 15 -- Yankuang Donghua Heavy Ind Co Ltd and Shandong Yankuang Intelligent Manufacturing have secured a patent on Unit Type Coal Mining Machine Rocker Arm. Wu Chengfeng, Yao Yang, Xu Kai, Dou Jingle, Guo Jing, Liu Guangming, Wang Rui, Gao Jincheng, Wang Ziya, Liu Anfeng, Liu Xingya, Li Yue, Wang Xiaojie, Xu Zhonglei..