Is a flat plate-shaped, rectangular, and directly rolled or by wide strips cut from. The plate 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. Points for hot-rolled and cold-rolled steel plate rolling points. The width of the sheet is 500 mm to 1500 mm; thickness of 600 to 3000 mm in width. The sheet steel Seed, ordinary steel, high-quality steel, alloy steel, spring steel, stainless steel, tool steel, heat resistant steel, bearing steel, silicon steel and pure iron sheet; professional zoning, drums board, enamel plate, bullet-proof plate; surface coating points, galvanized sheet, tin plate, lead-plated sheet steel plastic composite. Thick steel plate steels generally thin steel plate. 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 plate 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. In another, there is a material for steel, not all the steel sheet are the same, the material is not the same, the steel used, not the same.