C125 Copper Rod

After returning to his own cave from the blast furnace, Chu Dong's excited mood finally calmed down.

The current era he was living in was the Stone Artifact Era, it should be the New Stone Artifact Primitive Tribe era. At this time, he already had the bronze equipment, and the green Copper Rod in the hands of the warrior called Copper Rod was a proof.

If he could produce iron and alloys