Aluminum foil is a new type of industrial material made of aluminum metal. It is usually thinner, generally between 0.006mm and 0.2mm. It is light, soft, foldable and corrosion-resistant. It is soft and easy to deform, like paper, and does not rebound after deformation. It can be qualitative, ensure light blocking, will not fall off, is not light-transmissive, pollution-free, and cheap.