Metal-rolling mills; hot or combination hot and cold rolling mills

HS code 845521 covers metal-rolling mills, a critical component of the manufacturing industry. These mills play a vital role in the production of a wide range of metal products, from steel sheets and plates to aluminum foils and copper bars. They are essential for transforming raw metal into the semi-finished and finished goods that are used across numerous industries, including construction, automotive, and consumer electronics.

Metal-rolling mills utilize a combination of hot and cold rolling techniques to shape and refine metal materials. In the hot rolling process, metal is heated to high temperatures, making it more malleable, and then passed through a series of rollers that gradually reduce the thickness and shape the material. Cold rolling, on the other hand, is performed at room temperature, allowing for more precise control over the final dimensions and surface finish of the metal.

The primary inputs for the metal-rolling mill industry include raw metal materials, such as steel, aluminum, and copper, as well as specialized machinery and equipment. These mills require powerful rolling stands, motors, and other components to exert the necessary force and precision required for the rolling process. Additionally, the industry relies on a skilled workforce, including engineers, technicians, and operators, to ensure the efficient and safe operation of these mills.

The outputs of the metal-rolling mill industry include a wide range of semi-finished and finished metal products, such as 721010 Flat-rolled products of iron or non-alloy steel, of a width of 600 mm or more, hot-rolled, 760711 Aluminum foil of a thickness not exceeding 0.2 mm, and 740811 Wire of refined copper. These products are then consumed by various downstream industries, including 731100 Containers for compressed or liquefied gas, of iron or steel, 870321 Vehicles with spark-ignition internal combustion reciprocating piston engine of a cylinder capacity not exceeding 1,000 cc, and 852871 Reception apparatus for television, whether or not incorporating radio-broadcast receivers or sound or video recording or reproducing apparatus; monitors and projectors, not incorporating television reception apparatus, among others.