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Stem Model enginediy | Two-Cylinder Stirling Engine Model Physics Experiment Generator ModelStem Model enginediy | Two-Cylinder Stirling Engine Model Physics Experiment Generator Model
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Mini Generator

Stem Model enginediy | Two-Cylinder Stirling Engine Model Physics Experiment Generator Model

$37.39
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Stem Model enginediy | Two-Cylinder Stirling Engine Model Physics Experiment Generator ModelStem Model enginediy | Two-Cylinder Stirling Engine Model Physics Experiment Generator Model
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Electric Generator Model

Stem Model enginediy | Two-Cylinder Stirling Engine Model Physics Experiment Generator Model

$38.49
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Stem Model enginediy | Two-Cylinder Stirling Engine Model Physics Experiment Generator ModelStem Model enginediy | Two-Cylinder Stirling Engine Model Physics Experiment Generator Model
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Experiment Model

Stem Model enginediy | Two-Cylinder Stirling Engine Model Physics Experiment Generator Model

$37.94
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Stem Model enginediy | Ufo Spin Suspension Steam Engine Model Diy Engine Kit With Copper Boiler And Alcohol LampStem Model enginediy | Ufo Spin Suspension Steam Engine Model Diy Engine Kit With Copper Boiler And Alcohol Lamp
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Experiment Model

Stem Model enginediy | Ufo Spin Suspension Steam Engine Model Diy Engine Kit With Copper Boiler And Alcohol Lamp

$33.59
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Stem Model enginediy | V12 Electromagnetic Engine 5V 6W 12 Coils High Speed V-Shaped Automobile Engine Model For Gift CollectionStem Model enginediy | V12 Electromagnetic Engine 5V 6W 12 Coils High Speed V-Shaped Automobile Engine Model For Gift Collection
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Electromagnetic Motor

Stem Model enginediy | V12 Electromagnetic Engine 5V 6W 12 Coils High Speed V-Shaped Automobile Engine Model For Gift Collection

$96.61
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Stem Model enginediy | V12 Electromagnetic Engine 5V 6W 12 Coils High Speed V-Shaped Automobile Engine Model For Gift CollectionStem Model enginediy | V12 Electromagnetic Engine 5V 6W 12 Coils High Speed V-Shaped Automobile Engine Model For Gift Collection
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Stark® Motor & Model

Stem Model enginediy | V12 Electromagnetic Engine 5V 6W 12 Coils High Speed V-Shaped Automobile Engine Model For Gift Collection

$97.43
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Stem Model enginediy | V2 Car Engine Assembly Kit Full Metal Vtwin 2 Cylinder Engine Build Kit Gift For Collection (217Pcs)Stem Model enginediy | V2 Car Engine Assembly Kit Full Metal Vtwin 2 Cylinder Engine Build Kit Gift For Collection (217Pcs)
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Engine Model

Stem Model enginediy | V2 Car Engine Assembly Kit Full Metal Vtwin 2 Cylinder Engine Build Kit Gift For Collection (217Pcs)

$100.00
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Stem Model enginediy | V4 Electromagnetic Engine Model | 6-12V 5A All-MetalStem Model enginediy | V4 Electromagnetic Engine Model | 6-12V 5A All-Metal
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Electromagnetic Motor

Stem Model enginediy | V4 Electromagnetic Engine Model | 6-12V 5A All-Metal

$81.00
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Stem Model enginediy | V4 Engine Model Kit - Build Your Own V4 Engine - Science Experiment Stem Toy - EnginediyStem Model enginediy | V4 Engine Model Kit - Build Your Own V4 Engine - Science Experiment Stem Toy - Enginediy
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Experiment Model

Stem Model enginediy | V4 Engine Model Kit – Build Your Own V4 Engine – Science Experiment Stem Toy – Enginediy

$76.99
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Stem Model enginediy | V4 Engine Model Kit - Build Your Own V4 Engine - Science Experiment Stem Toy - EnginediyStem Model enginediy | V4 Engine Model Kit - Build Your Own V4 Engine - Science Experiment Stem Toy - Enginediy
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Engine Model

Stem Model enginediy | V4 Engine Model Kit – Build Your Own V4 Engine – Science Experiment Stem Toy – Enginediy

$75.99
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Stem Model enginediy | V6 Electromagnetic Engine Model 6 Cylinder High Speed Car Engine Working Principle Stem ToyStem Model enginediy | V6 Electromagnetic Engine Model 6 Cylinder High Speed Car Engine Working Principle Stem Toy
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Electromagnetic Motor

Stem Model enginediy | V6 Electromagnetic Engine Model 6 Cylinder High Speed Car Engine Working Principle Stem Toy

$96.74
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Stem Model enginediy | V6 Electromagnetic Motor Engine Model With Hexagon Fans For 1/10 Model Car Science Experiment Teaching ProjectStem Model enginediy | V6 Electromagnetic Motor Engine Model With Hexagon Fans For 1/10 Model Car Science Experiment Teaching Project
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Electromagnetic Motor

Stem Model enginediy | V6 Electromagnetic Motor Engine Model With Hexagon Fans For 1/10 Model Car Science Experiment Teaching Project

$98.80