To reduce my sentence, I developed a steel suit in prison

Waking up from crossing over, Li Bing finds himself in jail for economic crimes. And was sentenced to ten years in prison. After learning the situation, Li Bing's whole body was confused. He had just crossed over and hadn't even begun to make his mark yet, so how did he get ten years? It was at this time that the Divine Research System awakened. As long as one carried out can carry out scientific and technological research and development, one could obtain rewards! And in the newbie gift pack, the design of Iron Man's battle suit was opened! Thus, Li Bing began his path of scientific research in order to reduce his sentence. ...... Half a month later. The old professors of the Academy of Science stood outside Li Bing's cell, looking at the wall full of formulas in silence. Never did they expect someone to be in prison and develop an Iron Battle Suit!