简介:Time was short, and there was not much progress in the three tasks. Zhu Cihong was not in a hurry. Any progress could not be achieved overnight. After encouraging the craftsmen, Zhu Cihong went to the secret room at the back to discuss the research and development of grenades with Liu Ruoyu. Just the two of them, even Tian Shouxin and Chu Xianzhang were excluded.