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Galileo Pendulum Clock Engine Assembly Kit - Full Metal DIY Building Set for Kids and Collectors
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Double-Cylinder Stirling Engine Generator Kit with Colorful LED Lights and DIY Accessories
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DIY Toyan FS-S100AC RC Engine Building Kit - Create Your Own Functional Model Engine
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UFO-Inspired Suspension Steam Engine DIY Kit with Copper Boiler and Alcohol Burner
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Metal Steam Car Engine DIY Assembly Kit - 272 Pieces for Collectors and Enthusiasts
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Robot Assembly Kit: Educational DIY Engine with Remote Control - Ideal Gift for Young Innovators
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Single Cylinder Car Engine Model Kit - Electric Assembly Toy for Adults
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DIY Vertical Hero's Steam Engine Model with Boiler Kit
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Steam-Powered Vacuum Engine Model Kit - Educational Flame Engine Toy
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Premium Hot Air Single Cylinder Stirling Engine DIY Model
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ENJOMOR γ-Type Hot Air Stirling Engine DIY Assembly Kit - Educational STEM Model Gift
Regular price $39.99Regular price $39.99 Sale priceUnit price per -
ENJOMOR Luminous Flywheel Stirling Engine DIY Kit - Vintage STEM Toy
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Remote Control DIY Metal Tractor Model Kit - Educational Gift with APP Control Features
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Build Your Own 1965 Ford Mustang V8 Engine Model Kit - DIY Assembly with Sound Effects
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Single-Cylinder Engine Model Assembly Kit - Educational Build Toy for Collectors
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Working Oil Pump Jack Model Kit - TECHING 3D Metal Pumping Unit with Light - 219Pcs Educational Toy for Oilfield Enthusiasts
Regular price $149.99Regular price $149.99 Sale priceUnit price per