The smelting furnace that Ai Hui had modified was very different from the usual smelting furnaces.
The body of his smelting furnace was larger than the usual smelting furnaces, resembling a house that sat on top of a lava pit. On the roof of this smelting furnace, there were twelve flying pipes that resembled inverted bull horns. Surrounding the smelting furnace, there were twelve small fire pits. Each fire pit would shoot out a curved stream of flames, which would then enter the flying, inverted-bull-horn-shaped pipe corresponding to that fire pit. Upon entering the flying, inverted-bull-horn-shaped pipe, the stream of flames would come out from the other end of the pipe and shoot towards the centre of the smelting furnace.
Eventually, twelve curved streams of flames would gather in the center of the smelting furnace. The flames within the smelting furnace were white-hot and dazzling.
