Also known as Grandpa Lu, a respected technical expert at the factory over seventy years old. He held no official position but was deeply respected for his expertise. He guided Wu Xiaoxiao in the drafting room, teaching her about measurements and calculations. He worked tirelessly, often staying up late reviewing blueprints. He was amazed by Wu Xiaoxiao's natural talent for mechanical classification despite her village background. He led the team in figuring out the installation and calibration strategy for the imported machinery.
