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The process of two times oxidation
Jan 17, 2018

First, the aluminum shell is oxidized, the whole aluminum shell is corroded to the material, and the surface is bright.

With the special anti oxidation corrosion of the paint screen print out the font, and then the whole shell two times oxidation.

The place without silk screen is corroded to the material again, so that the font is protruded out.

Finally, wash out the paint on the convex word with alcohol, so that the bright surface of the convex word is displayed.



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