Security & Protection
| Wed 28 Oct 2026
Beijing, Oct. 28 -- Henan Shenhuo Coal and Electricity has received a patent for Protective Device for Hydraulic Fracturing. This invention was developed by Gao Gongli, Li Chuansong, Zhou You, Wang Bin, Zhang Haixian, Zhang Yafei, Huang Ming, Zhang Anquan, Guo Cong, Li Kai, Li Yuan, Shao Youping, Ji Chao, Liu Chao, Zhao Fei, Yu ..