E like me ke ʻano, Hiki ke hoʻokaʻawale ʻia ka pahu alumini i ka ʻōwili alumini a me ka pepa alumini. Hāʻawi ʻia ka hapa nui o nā mea huluhulu alumini alumini hoʻoponopono hohonu i nā ʻōwili, and sheet aluminum foil is only used on a few handicraft packaging occasions.
According to the state, Hiki ke hoʻokaʻawaleʻiaʻo Alumini Folla i loko o ka pā paʻakikī, semi-hard foil, and soft foil.
①Hard foil: The aluminum foil that has not been softened (Anned) after rolling, without degreasing treatment, has residues on the surface. No laila, Pono ke kumukūʻai paʻakikī ma mua o ka paʻiʻana, Lamination, and coating, and it can be used directly if it is used for forming.
②Semi-hard foil: Aluminum foil whose hardness (or strength) is between hard foil and soft foil, usually used for forming.
③Soft foil: Aluminum foil that has been fully annealed and softened after rolling. He palupalu ka mea a ʻaʻohe ʻaila koena ma ka ʻili. Most of the current application areas, such as packaging, Lamination, electrical materials, etc., use soft foils.