1.Life-span:more than 30 years 2.Material: galvanized steel 3.ISO9001:2000 4.High quality, and perfect appearance Shutter/JalousieProduct Aluminum/PVC ShuttersTypes: It has its own unique features, can be set inside the double glazed glass, too. MATERIALAluminum ProfileSeries: 38/38A/40/50/50A/60/70/80/110 etc.Construction: Thermal Break or Non-Thermal BreakAluminum Alloy: 6063 T5Thickness: 1.0-2 ...