Aerospace
| Wed 28 Oct 2026
Beijing, Oct. 28 -- Shijiazhuang Coal Mining Machinery has secured a patent on Drilling Machine Posture Adjusting Device and Airborne Drilling Machine. Yang Yang, Liu Jiajin, Hu Yuan, Jin Xin, Wang Xiaoyang, Zhu Yuqiang, Han Zhangming, Wang Tianyang, Wang Liang, Gao Chunfang and Li Weiliang developed the invention.
The patent a..