福彩一分钟快三开奖简介：Second, the Ming Dynasty does not lack artillery, and there is no need to implement iron mold casting. As for the labor saved, it can be ignored. The Ming Dynasty lacks everything except labor.
Second, the Ming Dynasty does not lack artillery, and there is no need to implement iron mold casting. As for the labor saved, it can be ignored. The Ming Dynasty lacks everything except labor.
