Engineering
| Fri 21 Aug 2026
Beijing, Aug. 21 -- Tianshui 213 Electrical Apparatus Group Co Ltd has received a patent for Contactor Contact System Arc Extinguishing Device. This invention was developed by Sun Yanping, Gao Weidong, Huan Li, Chen Ming, Fu Huixia, Zhao Qiongli, Yoo Yeol, Guan Junhong, Zhang Yali, Wang Li and Jiang Weixin.
The patent applica..