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I am Happy Old Ding, passionate about models~ Driven by interest and hobby, I have been playing with models for years and have also participated in some model R&D work; In my spare time, I also shoot videos, record my daily life, and share happiness~ There are challenges with model cars, There's taking models out to "tease" pedestrians on the streets, Sometimes it's a battle of wits with my wife. This is my only YouTube account, so please recognize it! Welcome everyone to follow~