Anodization is a industrial craft used on the metal surface. It'll improve the metal corrosion resistance, hardness, heat resistance.
You may click below link to see how it looks like:
https://www.dabpress.com/products/dp-rp37-diy-rosin-heat-plates
And how to use anodized rosin plate kit...
This post is about a 'Customized stainless steel Multi-Functional Magical botanical extractor'.
This device is similar to the 'Magical Butter Machine' but is produced in China and has a Decarboxylate feature.
Here are a list of features from the Alibaba page:
Multi-protection device...