Metal & Mining
| Fri 01 May 2026
Beijing, May 2 -- Beijing China Tank Ind Co Ltd has submitted a patent application for Machining and Forming Method for Large-volume Spherical Metal Container. This invention was developed by Li Dongdong, Song Zhuohao, Zhao Liang, Gao Yongzheng, Qu Liqiang, Zhang Yansong, Zhao Jie, Duan Xiaodong, Xing Jianguo, Ma Ning, Wu Maoqin..