Zhengzhou Aix telling you how does an oil refinery work

When we talk about cooking oil, we will think that all of cooking oil will like the one selling in the super market.

However, after using oil press machine to press oil, we usually get the crude oil, like the photo below:

But how can we get cooking oil like the one in the super market?

We need a oil refinery:

We can make 2-100T/D oil refinery plant, if you want to know the process and price, please feel free to contact me: