l for a moment"Mr. Mirror stroked his beard and smiled, "Your Highness, feel free."Nodding, Li Chen then looked at Zheng Baorong and said calmly, "Do you know why I had the Dongchang bring you here"Zh...t of thin air. The Qin Dynasty had already developed them, but everyone knew that their accuracy was poor and it took a long time to load gunpowder, so they were not widely promoted or developed. Ever...