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Novel, beautiful, unique, Most modern breath. Anodic oxidation process is different from the ordinary painting process. It by current conductive acidic electrolyte electrolyte, constitute anode aluminum metal surface oxidization, the aluminum surface natural growth out of a layer of thick and dense alumina protective film. This layer of oxide film is not additional layer, not peeling off. Oxide film colorless, microcrystalline is hexagonal honeycomb structure, as well as the aluminum color highlight strong sense of metal, but also in the pore evenly coloured gives splendid color of the curtain wall, greatly broaden the application of designer horizon.