Pipe
| Wed 03 Jun 2026
Beijing, June 3 -- Offshore Oil Engineering has sought patent for Method for Regulating and Controlling Microhardness of Root Weld Bead of Acid Subsea Pipeline Gmaw Joint. This invention was developed by Sun Youhui, Li Lixia, Yang Xiaofei, Liu Yongzhen, Li Zixuan, Lu Xinyu, Wu Xiaogang, Huang Jiangzhong, Ma Lishun, Zhou Xicheng,..