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Chemical Non-Chrome AL-7560 are used for surface treatment of aluminium and aluminium alloys. This chemical solution does not create mud during use and can be used to spray or dip. Oxygen from amorphous layer is created during the processing of external corrosion feature, good for aluminum paint is not great for the background layer of the paint. The color of the layer oxygen from Brown to dark brown from slightly depends on the alloy as well as controlling the solution.
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