Fojl tal-aluminju jista 'jinqasam f'fojl oħxon, fojl żero wieħed, u fojl żero doppju skond id-differenzi tal-ħxuna.
① Fojl ta' kejl tqil: Fojl bi ħxuna ta' 0.1-0.2mm.
② Fojl ta 'kejl medju: fuljetti bi ħxuna ta' 0.01mm jew inqas.
③ Double zero foil: The so-called double zero foil refers to the foil with two zeros after the decimal point when its thickness is measured in millimeters. It is usually aluminum foil with a thickness less than 0.01, that is, aluminum foil with a thickness of 0.005-0.009mm. Aluminum foil with a thickness of ≤ 40ltm is sometimes referred to as "light gauge foil" in foreign countries, while aluminum foil with a thickness of>40btm huwa kollettivament imsejjaħ "fojl tal-kejl tqil".