Pipe
| Wed 21 Oct 2026
Beijing, Oct. 21 -- Chinese Patent for Double-station Pipeline Intelligent Welding Device has been issued to Offshore Oil Engineering and China Nat Offshore Oil Corp. This invention was developed by Chen Xin, Liu Ruifeng, Liu Hailin, Zhai Zhiguo, Shi Rongfei, Shi Dongdong, Chen Rui, Yang Shangyu, Wang Xin and Liu Ran.
The pat..