Metal & Mining
| Thu 15 Oct 2026
Beijing, Oct. 15 -- TZ Coal Machinery Co Ltd has been awarded a patent for Height Adjusting Oil Cylinder for Coal Mining Machine. This invention was developed by Li Xiaopeng, Yan Xiling, Duan Xiao, Wang Ruiming, Li Xiaozhe, Zhang Zhenzhong, Cheng Yue, Zhou Yongpeng, Yao Xiaokai, Zhang Yi, Li Yang, Jia Tiejun, Wang Yigang, Hou Ni..