Who does ran hong think it is? Beikuang Technology Dongmi

Mr. Ran Hongxiang: Born in 1977, master of engineering, professor-level senior engineer. He has been engaged in R&D and management in Mechanical Research Institute of Beijing Institute of Mining and Metallurgy and Beikuang Electromechanical Technology Co., Ltd. successively. 20 15 12 served as secretary of the board of directors of beikuang magnetic materials technology co., ltd.