Automobile
| Fri 13 Nov 2026
Beijing, Nov. 13 -- Yunnan Yongchang Pb & Zn has been granted a patent for Safety Fixing Device for Mine Car. Tang Chengsuo, Zhu Kun, Liu Fuqiang, Zhao Xueming, Zhang Xiaohan, Peng Bin, Zhao Xingchang, Wang Zihui, Wu You, Zhu Shaopin, Yang Xihai, Wang Chaoheng, Yan Rongfang, Yang Yuheng and Huang Qian developed the invention.
T..