C789 Refining Iron!

However, the performance of Qing Shi and the others had exceeded Yuan Ge's imagination. When they saw the device used to smelt bronze, their eyes were wide open, as if they could not believe that there was such a method to smelt bronze in this world.

"Brother Yuan Ge, is this the device used to smelt bronze?" Qing Shi asked curiously, and kept looking at the device