Etching
Etching removes the segregation layers and natural oxide films on the surface of the aluminum.
It is possible to achieve different matte tones on the surface depending on the products and conditions during the etching phase.
![](http://www.okuno-intl.com/wp-content/uploads/2023/01/al_etch-2.png)
Products: ALSATIN L, ALSATIN SK, ALSATIN FF-250, ALSATIN FF-80