I believe the term sheet metal that no one familiar with this with our lives are closely related relative to the metal processing industry, although the proportion is only 20% -30%, but almost all of the manufacturing industry will have a sheet metal processing , for example, the machine tool industry, textile industry, food machinery, electrical, instrumentation industry, in recent years, the domestic sheet metal industry is growing, but for the sheet metal industry, information technology professional software vendors still relatively scarce, so supply and demand imbalance.