s throbbed.His anger was rising, and he desperately wanted to banish the Three Treasures. However, Hu Lansheng's shrill screams, like those of a demon from hell, pierced through his rage, reminding hi... "Your servant dares not disobey your command, but the development of gunpowder requires a large number of experiments, and the application for materials is afraid that it cannot avoid the eyes and ea...