Steel plates are usually rectangular and can be rolled directly or cut from a wide strip of steel. Steel plate can be divided into hot rolled and cold rolled according to the rolling method, as well as different types of steel and surface treatment methods, such as ordinary carbon steel plate, heat-resistant steel plate, alloy steel plate, stainless steel plate and so on. Steel plate has the characteristics of high strength, corrosion resistance, wear resistance, etc., so it is widely used in construction, machinery, electronics, automobile manufacturing, furniture decoration and other fields.