Metal-rolling mills; parts thereof

HS code 845590 covers metal-rolling mills and their component parts. These specialized machines play a crucial role in the metalworking industry, transforming raw metal into a wide range of products used across various sectors, from construction and automotive to consumer goods and infrastructure. As a key enabler of industrial manufacturing, the metal-rolling mill industry is a vital cog in the global economy.

Metal-rolling mills use a combination of rollers, gears, and other mechanical components to apply compressive force and shape metal into desired forms. The process typically involves feeding metal stock (such as ingots, sheets, or bars) into the mill, where it is gradually reduced in thickness and elongated as it passes between the rotating rollers. Depending on the specific mill design and the desired output, the metal may undergo multiple passes through the rollers to achieve the required thickness, surface finish, and shape.

The key inputs for the metal-rolling mill industry include 720610 Iron and non-alloy steel in ingots or other primary forms, 720711 Semi-finished products of iron or non-alloy steel, and other raw metal materials. Additionally, these mills require specialized machinery, such as 845521 Metal-rolling mills, other than tube mills, as well as power sources, lubricants, and maintenance supplies to ensure efficient and reliable operation.

Metal-rolling mills produce a wide range of semi-finished and finished metal products, including 720810 Flat-rolled products of iron or non-alloy steel, of a width of 600 mm or more, hot-rolled, not clad, plated or coated, 720920 (Flat-rolled products of iron or non-alloy steel, of a width of 600 mm or more, cold-rolled (cold-reduced), not clad, plated or coated), and 730410 Line pipe of a kind used for oil or gas pipelines, of iron or steel. These outputs are then consumed by various downstream industries, such as construction, automotive, and manufacturing.