Oil & Gas
| Sun 14 Sep 2025
Beijing, Sept. 15 -- Zhanjiang Branch of China National Offshore Oil has obtained a patent for long cylinder type filter taking-out device. This invention was developed by Xu Xiaoming, Zhang Hairong, Chen Keying, Wang Chunhui, Gao Jiaxing, Song Xiaolong, Shang Zanhui, Du Chuang, Ma Pengfei, Su Huajun, Zhang Yong and Wang Yuanwu...