It is luxury series door, looks grander, has good performance to guard against theft. Aluminium alloy: 6063Temper: T5Urface treatment/color: Powder coating white, anodized silver, electrophoresis bronze.Package: Put protection film on the expose surface, Per pc interweaved with white sponge; Per Bundle wrapped with shrinked films.Standard: GB/T5237-2008. Aluminium Luxury Series Door