Transportation
| Mon 21 Sep 2026
Beijing, Sept. 21 -- China Railway Design Corporation has submitted a patent application for Flat Type Universal Positioning Jack for Track Lifting. Tao Ming'an, Wang Jianjun, Zhang Haibing, Wang Yakun, Chen Jinxin, Wang Jian, Zhang Jingsong, Zhao Chensheng, Bu Tongqing and Li Zhangfeng developed the invention.
The patent appli..