Respuesta :
The correct answer is that anodization can produce a thin film around the metals, preventing rusting and other kinds of corrosion.
Anodizing refers to an electrolytic passivation procedure used to enhance the thickness of the natural oxide layer on the metal parts surface. The procedure is known as anodizing as the section to be treated produces the anode electrode of an electrolyte cell. The process enhances resistance to corrosion and rusting.