Metal refining is the process of purifying raw metals to remove impurities and enhance their quality. This is essential because most metals found in nature, like iron or copper, are mixed with other elements and minerals. Refining helps produce metals that are strong, durable, and suitable for various applications, such as construction or electronics. The refining process often involves techniques like smelting, where heat is used to separate metal from its ore, or electrolysis, which uses electricity to purify metals. These methods ensure that the final product meets industry standards and can be used safely in products like automobiles and electronics.