By China's sustained economic growth and industrialization, urbanization and modernization process accelerated, known as the industrial sewing machine welding equipment widely used in petroleum chemical industry, electric power, aerospace, Marine engineering, nuclear engineering, microelectronics technology, Bridges, ships and submarines, and various kinds of metal structures and other industrial departments, according to incomplete statistics annual output of steel and non-ferrous alloy, all over the world are put into use by welding, created a huge business opportunities for welding equipment market.