The metallic parts packed with VCI UNIVERSAL ® PLASTIC BAGS receive a continuous protection against saline environments, moisture condensation, water vapor, aggressive industrial environments and wide open kinds of metal corrosive environments. The VCI (Vapour Corrosion Inhibitor) vaporizes and condensed in all the surfaces of a metal content inside a package. The VCI protects all metallic parts in its interior and exteriors protects of any packed part, by its excellent penetrating power.