Metal & Mining
| Sat 06 Jun 2026
Beijing, June 6 -- TZ Coal Machinery Co Ltd has submitted a patent application for Coal Mining Machine and Rocker Arm Transmission Device and Rocker Arm Transmission Method Thereof. Li Xiaopeng, Wang Xuesong, Yao Xiaokai, Li Yang, Hou Ning, Song Dongshuai, Wang Ruiming, Wang Yongfeng, Li Xiaozhe, Xu Tianjiao, Jiang Fei, Zhang Fe..