Metal & Mining
| Sun 27 Oct 2024
Beijing, Oct. 28 -- Shanxi Shuozhou Shanyinjin Ocean Water Spring Coal Ind has been granted a patent for water sucking and filtering device of drainage pump. This invention was developed by Zhang Fusheng, Gu Baojian, Zhang Yang, Wu Guodong, Yang Huiwen, Peng Chi, Lian Yong, Mi Jinshan, Cao Xiaofeng, Chang Yunlong, Yang Yong, Xie..