Pipe
| Mon 03 Aug 2026
Beijing, Aug. 4 -- China Constr 8th Engineering Division has obtained a patent for fire welding device for vertical pipeline welding. This invention was developed by Zhang Bin, Chen Tie, Han Jingming, Lu Haoran, Zhang Jianyin, Xu Zhipeng, Deng Xi, Fang Xianwei and Tian Yubing.
The patent application number is CN202422800774U 20..