Bright oxidation: commonly known as electro-polishing, the overall glow is bright, similar to the appearance of UV vacuum plating of plastic parts.
Matte oxidation: The surface of the aluminum rod is oxidized after being sprayed with fine sand, and the surface is matte.
Sand-throwing oxidation: The surface of the aluminum rod is oxidized after rough sand is thrown, and the granularity is large and obvious.
Drawing oxidation: the surface of the aluminum rod is oxidized after drawing
Light yellow oxidation: matte but no graininess, no problem with laser, easy to fall off when printing.
