... *Surface treatment:anodizing ,powder coating, fluorocarbo Aluminum Single Panel for Curtain Wall 1, Aluminum Alloy guide AlloySiFeCuMnMgZnCrTiOtherRemain11000.40.550.05-0.20.05...0 ... ,maximum 6 meters 3,Finish introduction: Mill finishFinish of aluminum itself,with a natural anodic layer formed in the air ... and air bubble film, or according to your requirements Aluminum Single Panel for Curtain Wall