Rolling is a manufacturing method that shapes materials by passing them through rollers to reduce thickness or change their shape. It is commonly used for metals like steel, aluminum, and copper. The thickness of the material being rolled depends on its type and the rolling process used. Thin sheets can be rolled into coils or strips, while thicker materials may require larger rolling mills. Typical thicknesses for rolling can range from a few millimeters for thin sheets to several centimeters for heavy plates, allowing for the production of various products like pipes, sheets, and structural components.