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Aluminum foil is primarily composed of aluminum, which is a lightweight, malleable, and ductile metal. It is made from aluminum alloy, often with a purity of 98% or more. The composition may also include small amounts of other elements such as manganese, magnesium, or silicon to enhance its strength and durability. These alloys are chosen for their ability to be rolled into thin sheets without breaking, making them ideal for various applications including food packaging and insulation.
