There are many processing techniques for the surface color of aluminum alloys, including: anodizing, electrophoresis, spraying, etc. The conventional colors of aluminum profiles with different treatment processes are as follows:
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Oxidation: Champagne, silver (usually no oxidation of the special color is called silver oxide), stainless steel, bronze, golden yellow, local gold, rose gold, blue, purple, black and so on.
Electrophoresis: champagne, silver, stainless steel, bronze, gold, black, etc.
Spray: Any color.
