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Teching Classic Car Engine Assembly Kit Mini Electric Single-cylinder Engine Metal Mechanical Model High Level Educational Collection |
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TECHING 160pcs DIY Build Your Robot Kit Robotic Engine Assembly Kit Educational Toy DIY Gift |
$199.99 |
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$199.99 |
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Hot Echo Type Single Cylinder Quartz Heating Tube Stirling Engine Model |
$29.99 |
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Mini Hot Air Stirling Engine Single Cylinder Engine Motor Model STEM Educational Toy - Enginediy |
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DIY Acoustic Levitation Electronics Makes Learning Kits for Science and Small Experimental Standing Waves |
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Stirling Engine Kit DIY Single Cylinder Stirling Engine - Ideal Engine Model Gift for Your Kids Enginediy |
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2 Cylinder Stirling Engine Electricity Generator with Bulb Stirling Engine Motor Model - Enginediy |
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Solar Magnetic Levitation Model Levitating Mendocino Motor Educational Model Vertical Stand - Enginediy |
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Stirling Engine Kit Unassembled Engine Kit Electricity Generator with 4 LED Light - Perfect Gift Choice |
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Multi Stage Steam Turbine Physics Equipment Demonstration Educational Toy Enginediy |
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Desktop Stirling Engine Kit All-metal Stirling Engine DIY Kit Set Toy - Enginediy |
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Mini Stirling Engine Motor Model - High Performance Pocket-Sized Engine - Enginediy |
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Mini Singing Tesla Coil Music Kit Wireless Transmission Experiment Desktop Toy - Enginediy |
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