Electrical
| Mon 13 Apr 2026
Beijing, April 13 -- Baotou Huamei Rare Earth Products and China North Rare Earth Group High Tech Co Ltd have secured a patent on Liquid Level Switch and Liquid Level Control Device. Zhao Yang, Yun Qiang, Yao Yuanlin, Nie Lei, Li Qiang, Zhang Wanhui, Liu Bin, Liu Zhannian, Cai Changqing, Li Shuyi, Cao Suoji, Zhang Feng and Yao B..