First judged from the hand: the aluminum plate that is not anodised is a bit sloppy, a little touched, and the anodised aluminum sheet is smooth (especially the sealed anodised )




Judging from the color: Now the market is generally divided into the following categories:
(1) Silver white oxidation, that is, aluminum color anodised, it is similar to the original color of aluminum plate, but it is slightly darker, the color is evener, and the hand feeling is obvious!
(2) Acid scrub anodisation: this anodised surface is foggy white, a little bit of sand
(3) Alkali scrub, which is darker than acid scrub and also has a little sand surface. This color looks more stable and atmospheric.
(4) Mirror anodisation, we generally talk about bright anodisation, it is very bright, almost the same as the mirror
(5) What other like scented colors, Gutong color, is very good judgment.