Metal & Mining
| Wed 06 May 2026
Beijing, May 7 -- State Intellectual Property Office of China has published Capital Aviation Mach Co Ltd patent application for Back Gas Protection Fusion Welding Base Plate. The invention was developed by Zhang Suhong, Luan Zongfeng, Li Jiaqi, Sun Shixuan, Tian Zhijie, Yan Xu, Sun Wenliang, Li Li, Yin Zhicai, Chen Wenqian, Diao..