Metals can be recycled indefinitely without losing any of their properties. All types of metal can be recycled even if there is some plastic or wood attached, examples include cooking pots, washing machines and ironing boards. Many objects contain valuable metals, such as copper, zinc and magnesium that have great reuse value. Millions of tonnes of scrap metal per year are recovered by processors and consumed by secondary smelters, refiners, ingot makers, fabricators, foundries and other industries.