Tools and Machinery
| Tue 26 May 2026
Beijing, May 26 -- Sinoma Energy Conservation has submitted a patent application for Multifunctional Conduction Oil Injection and Drainage System. This invention was developed by Han Yaping, Zhang Guoping, Zou Junhui, Xie Hua, Dong Haoran, Xiao Meng, Li Xiang, Li Yong, Cao Wei and Xiao Yang.
The patent application number is C..