Industrial
| Fri 01 May 2026
Beijing, May 2 -- State Intellectual Property Office of China has published Ningxia Tiandi Benniu Industrial Group patent application for Transition Groove Welding Method. The invention was developed by Dong Manshu, Zhang Lei, Peng Chuntao, Liu Cheng, Wang Rongwu, Lyu Jinbo, Li Weilin, Chen Bing, Zhang Weijie, Zhao Shiyao, Li Do..