How to make automatic ore burning machine

1. Mathematical currency is the real currency. It just transforms paper into data. It is also the official currency issued by the central bank. The number in yu'ebao is just a kind of number of the merchants themselves.

3. Set up a ore burning machine; There's a box next to it. Put copper and iron in the box, and then coal. If you go away, it will burn automatically

4. Automatic ore burning will disappear. Automatic ore burning is used for convenience