Defense
| Sat 05 Sep 2026
Beijing, Sept. 5 -- Shanxi North Machine Building has secured a patent on Structure for Reducing Scratches on Outer Surface of Inner Barrel of Gun Salute Balancing Machine. Lu Jiahui, Liu Guozhi, Chuai Yanjun, Wan Chen, Pan Chengda, Zhang Zhifeng, Zhang Yue, Xue Gengjian, Zhang Jun and Shao Shuaichao developed the invention.
Th..