1.The anti-aging, high strength 2.Corrosion resistance, long life 3.insulation 4.Energy saving 5.Sound insulation Parallel Outward-opening Window High intensity. Anti-aging.Serve life much longer than other material window&door. High durability. Effectual heat preservation ,e Main Materails Profile Aluminium Alloy6063-T5Thickness2.0, 2.5, 3.0mmFinishingAnodized /Powder Coated/Electrophoresis / ...