1.Heat insulation,energy-saving. 2.Simple struction,easy installation. 3.Easy ... house.4.Aluminum surface color: we have many colors for you choose,white,silver,black,champagne,bronwn,etc. ... ,electrophoresis and also anodizing. PVDF coating is especially for windows and doors close to island,have the anti ... So the window can bear enough weight and use for a long time.8.Performance parameter: 1.Sound ...