Plates and sheets are flat, solid metal objects used in a variety of industries, including manufacturing, building, and engineering. The main difference between plates and sheets is thickness; plates are often thicker than 3mm, whereas sheets are thinner, usually less than 3mm. Both forms are available in a wide range of metals, including stainless steel, aluminum, carbon steel, and alloys, and are valued for their adaptability, strength, and durability. Plates and sheets are used for structural components, machinery, automobile parts, and cosmetic purposes.