Rubber
| Sat 22 Nov 2025
Beijing, Nov. 22 -- Offshore Oil Eng Qingdao Co has applied Chinese patent for Auxiliary Tool for Mounting Riser Clip Rubber. Wang Aiming, Sun Xiaofei, Wang Peigen, Li Jikui, Zhang Deguo, Ma Jinming, Zhang Guoya, Zhao Yang, Zhang Mingyue and Chen Zhishuo developed it.
The patent application number is CN202411966812 20241230. ..