... Surface treatment:anodizing ,powder coating, fluorocarbo Aluminum Single Panel for Curtain Wall 1, Aluminum Alloy guide AlloySiFeCuMnMgZnCrTiOtherRemain11000.40.550.05-0. ... 6 meters 3,Finish introduction: Mill finishFinish of aluminum itself,with a natural anodic layer formed in the air,week ... electrostatically charged and sprayed onto the part,to form a thick layer to protect the surface.with very good ...