Li Qinghe was transported into the 1955 Film and Television Courtyard by a mobile game, with a full set of first-build estimator certificates in his pocket. As soon as he found out that the original owner was an airborne technician from the steel rolling mill, he bumped into Xu Damao secretly changing the steel markings in the factory. The new project manager took out a vernier caliper and pointed it at the pile of materials and sneered: The scumbag project I reviewed in 2024 is enough to put your factory in jail for ten years. The courtyard was full of beasts waiting to see the paratroopers' jokes. It was the first time that someone had brought the project quality acceptance standards into the 1950s.