Detonating Industry: I Will Make Huaxia Science and Technology a Hundred Years Ahead of Schedule

In Linhai City in 2004, Lin Shen, the second generation of the factory, traveled through time with the "Universal Workshop" and made the "Nirvana brand" multi-functional wrench with exaggerated performance. Hardware store owner Zhang is excited but worried about the high price and difficulty in selling. It happened that the mysterious man in overalls was looking for a wrench, and after trying it out he readily bought it. Three days later, the military came to the door. It turned out that the man had used the wrench to unscrew the aircraft carrier's access flange. Lao Zhang was shocked and couldn't help but wonder: What kind of artifact did Lin Shen create?