Is a flat plate-shaped, rectangular, and directly rolled or by wide strips cut from. Steel by the thickness of thin steel plate <4 mm (the thinnest 0.2 mm) thick steel plate 4 to 60 mm, 60 to 115 mm thick steel plate sheet width of 500 mm to 1500 mm; thick width of 600 to 3000 mm thick steel plate of steel in general and sheet. In all aspects of the product, in addition to the purely slab bridge plate, boiler plate, automobile manufacturing steel, pressure vessel steel plate and multi-layer high-pressure vessel steel and other varieties, some varieties of steel, such as automobile beam steel (2.5 to 10 mm thick), the pattern steel plate (thickness of 2.5 mm to 8 mm), stainless steel, heat-resistant steel and other varieties of the same sheet cross. The steel rolling points, points for hot-rolled and cold-rolled.