The metallurgical industry is the basic industry of the national economy. It mainly involves the mining, smelting and processing of metal ores, providing important raw materials for all walks of life. According to the types of metals, the metallurgical industry can be divided into two categories: ferrous metallurgy and non-ferrous metallurgy, corresponding to the production of metals such as iron and steel, and non-ferrous metals such as copper and aluminum respectively. In addition, according to different processing methods, it can also be divided into rare metallurgy. 

 The metallurgical industry has a long history. It can be traced back to the Spring and Autumn Period and the Warring States Period, when iron production had appeared. Since the 20th century, especially after the founding of New China, China's metallurgical industry has gone through a process from scratch, from small to large, and from weak to strong. Entering the 21st century, with the increasing prominence of global resource and environmental problems, the metallurgical industry is facing an urgent need for transformation and upgrading, and is developing towards intelligence, greening and service. 

 The metallurgical industry is the foundation of modern industry. It provides necessary metal materials for construction, transportation, electronics and other industries, and plays a pivotal role in the development of the national economy.