Security & Protection
| Fri 16 Oct 2026
Beijing, Oct. 16 -- Liaoning Kuake Petroleum Equipment Co Ltd has applied Chinese patent for Novel Pumping Unit Safety Auxiliary Device. Xu Hongguang, Chen Bingyi, Yang Xiaoling, Sun Pengfei, Wang Chao, Tan Hailin, Zhang Yu, Sun Shiyong, Zhang Jiandong, Zhao Zihao, Zhao Guangyou, Xia Pengcheng and Dong Wanxu developed it.
The..