Copper-clad steel

Copper-clad steel is a type of metal that is made up of two different materials. It has a layer of copper on the outside, which is a metal that is very shiny and is often used to make coins and jewelry. Underneath the copper layer is a layer of steel, which is a very strong and tough metal that is used to make tools and buildings. Copper-clad steel is a combination of two materials that has both the strength of steel and the shininess of copper.