Tools and Machinery
| Sat 11 Apr 2026
Beijing, April 11 -- Billion Tech Limited has been granted a patent for Double-shaft Rotary Welding Clamp for Large Workpiece. Zhang Lingfeng, Xia Weiming, Gan Yao, Zhang Jingqiu, Lin Yupeng, Wang Yinqing, Lao Linfeng, Li Huading and Li Yaoming developed the invention.
The patent application number is CN202422547916U 20241021..