Cold Rolled Steel
Cold-rolled steel is manufactured by a process wherein sheet metal is placed between a pair of rollers and then compressed and squeezed to produce the required thickness. The resulting steel product thus has a good surface finish and excellent mechanical properties and is widely used as a basic material for automobiles, consumer electronic products, furniture, construction materials and office supplies. After compressing and squeezing, cold-rolled steel is subjected to various processes depending on its utility, such as zinc or electric coating and color coating which applies paints on the surface of the steel. Cold-rolled steel is categorized roughly into coils (long, uncut steel) and sheets that are cut and then folded into shape in multiple layers.