Sheet metal processing usually refers to a comprehensive process of 6mm or less means the cold metal sheet , including cutting, punching , cutting , laminating, folding , welding, riveting, stitching , molding ( eg car body ) , with its remarkable features is consistent with the same part thickness. Secretary-General of the Shenzhen Association Guowu Long said sheet metal sheet metal processing industries closely related to people ’s daily lives , although the sheet metal in the metal processing accounted for the proportion of only 20 % -30 % , but almost all will be involved in manufacturing sheet metal processing . According to statistics, the number of existing sheet metal processing industry, more than 30,000 enterprises , employing more than 1.8 million , the annual production of sheet metal parts over 40 million tons , total sales of 500 billion yuan .

Sheet metal processing industry to enhance the country ’s machinery manufacturing industry , communications, electronics industry , automotive and shipbuilding industries have a certain importance , such as the gradual rise of the domestic industry, but also led to the rapid development of sheet metal processing industry. At present, the rapid economic development of the region or industry developed regions have emerged in the sheet metal industry cluster. Shenzhen in the Pearl River Delta , Yangtze River Delta and the Bohai Economic Zone in Suzhou Cangzhou and other places, have appeared dozens or even hundreds of industry clusters, has formed a local industry chain. Sheet metal industry appeared mainly for domestic machinery manufacturing enterprises to supporting sheet metal processing , machinery manufacturing enterprises to cultivate the foreign sheet metal processing industry, and sheet metal processing industry has promoted the rapid development of machinery manufacturing enterprises.