Features: 1) Available in anodized, powder coating, electrophoresis, wood grain with various colors. 2) Alloy: 60 1)Top grade wood-grain aluminum section of rotary shutter:2)wood-grain like surface3)Fashionable and environmental friendly,4)meets customers' requirements;5)smooth surface, hard finish and strong cohesive force.6)overlook scenery without opening the window,Burglarproof, high light ...