Siheyuan: My Drawings Are Classified as Top Secret

After traveling through time and becoming a steel-rolling apprentice, Chen Yuan faced a double-death threat: he was forced to donate his salary during the whole-hospital meeting, and the workshop assessment tools were stolen. He silently spread out a sketch: "There is no salary, but this technology can double the factory's pass rate, so I donated it." From then on, everything started to get out of control. The hand-ground gears silence military experts, while the lathes modified by local methods take over top-secret tasks. Siheyuan's schemes followed one after another, including stealing notes, creating rumors, and even trying to make him "disappear". But they don't understand: when Chen Yuan's name appears on the national project list, the times are behind him. From an apprentice who was forced to donate money to an engineer who solved the "stuck neck" problem, he used a file to create his own golden age of industry. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.