The sheet metal processing industry is closely related to all walks of life, and sheet metal processing will be touched in the manufacturing industry. According to statistics, at present, the number of existing enterprises in China's sheet metal processing industry exceeds 30,000, the number of employees exceeds 1.8 million, the annual consumption of sheet metal parts exceeds 40 million tons, and the total sales volume reaches 500 billion yuan. At present, sheet metal industry industrial clusters have been formed in regions with rapid economic development in China, such as Shenzhen in the Pearl River Delta, Suzhou in the Yangtze River Delta and Cangzhou in the Bohai Rim Economic Zone, etc., there are dozens or even hundreds of industrial clusters.      The sheet metal processing industry has a certain importance in upgrading the machinery manufacturing industry, communication electronics industry, automobile and shipbuilding industries. The sheet metal industry is mainly for machinery manufacturing and other industries to do supporting sheet metal processing, they promote each other and develop each other.       At present, China's sheet metal processing industry technology development degree is relatively fast, belongs to technology-based, capital-based labor-intensive industry, sheet metal processing industry as a domestic fundamental industry, with the continuous development of the economy is in the rising channel.