C181 Terrible speculation

At this time, the General Qin spoke up: "Did we forget one important point, and that was the nigrum that we found on top of every mountain? That many nigrum were definitely not rushed to attack Fan Hua City, and even Fan Hua City does not have many of such terrifying things. After all, these things are controlled by the 100 countries of the Central Plains. There is no such thing as a ore