Steel sheet is a metal product widely used in various industries and has a variety of uses. In the field of structural construction, steel plates are used in steel structures and reinforced concrete structures; In the field of automobile manufacturing, it is used for parts such as body, carriage and frame; In the field of shipbuilding, used for hull structures; In the field of electrical manufacturing, it is used to make metal enclosures and structural parts. In addition, it is also widely used in petrochemical, metallurgy, rail transit and other fields. Steel sheet with its excellent physical and mechanical properties, constantly promote the development of various industries.