Siheyuan: the Eldest Son of the Steel Rolling Mill, Entering the Military Industry

I, Yang Jianjun! Originally, he was a small employee in a second-rate military research institute in 2025. This day suddenly traveled through time. It's time to travel back to the world of the Courtyard full of love in 1955! However, he did not come to the Animal Courtyard. Instead, he became the youngest son of Yang Aimin, the director of the Hongxing Steel Rolling Mill. Look at the world. Yang Jianjun smiled. Looking at the legendary courtyard at No. 95 Nanluogu Lane. He wanted to try the 108 bird training methods mentioned on the Internet, but he didn't know how effective it would be. By the way! Make use of the outdated technologies in the research institute. Don't forget! This is 1955. Even technologies that will be phased out in 2025 can still make huge waves in this era. Is the country studying the Type 56 submachine gun? Um! —— Let's jump directly to study 81. Is the country researching new grenades? Um! —— Yang Jianjun directly came up with a new gunpowder ratio. Is the country researching tanks? Research aircraft? Researching rockets? Um! —— Do it! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.