Metallurgical engineering experimental class. According to the inquiry of official website of Northeastern University, in order to aim at building a manufacturing power and the national development strategy of "One Belt, One Road", adapt to the requirements of industrial greening and intelligent transformation and upgrading, and cultivate compound high-quality talents with multidisciplinary knowledge, broad international vision and strong practical and innovative ability, Northeastern University has set up experimental classes, namely key classes. The School of Metallurgy of Northeastern University was established by the Institute of Iron and Steel Metallurgy, Nonferrous Metallurgy, Metallurgical Physical Chemistry, Thermal Energy and Environmental Engineering, Engineering Thermophysics, Resources and Environmental Engineering and Industrial Ecology. Its history can be traced back to 1923 Department of Mining and Metallurgy at the beginning of Northeastern University. It has a long history and a strong faculty. Therefore, Northeastern University has set up five undergraduate majors of Metallurgical College as metallurgical engineering experimental classes, including