... Aluminum Designer Door and Window Features:1)Air-proof, fire-proof, safe-proof and water-proof2)Sound insulation and heat insulation3) ... security lock; D-handle lock/in lock/handle lock and etc.Hinges: new-style, reinforced hinge, thickned, widened, ... rotation bearing.Stainless steel accessories---hinges, locks, handles, screws, installation bolt and etc.Packing: Foam Paper+carton, Pearl cotton+ ...