Pipe
| Mon 05 Jan 2026
Beijing, Jan. 5 -- State Intellectual Property Office of China has awarded a patent to Offshore Oil Development Zhuhai Pipeline Eng Co Ltd for Subsea Pipeline Node Air Pressure Driving Walking Rust Removal Device. Wu Zhanwen, Jia Zhen, Jin Xiao, Li Jinwei, Yu Yazhou, Hu Lindong, Yue Wenyuan, Zhao Cen, Sun Chao, Zhang Shuaiqi, Ya..