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51% off
Star Shaped Engine Model Strong Magnetic Piston Engine DC Brushless Motor Electromagnetic Principle Research Teaching Aids Star Shaped Engine Model Strong Magnetic Piston Engine DC Brushless Motor Electromagnetic Principle Research Teaching Aids

Star Shaped Engine Model Strong Magnetic Piston Engine DC Brushless Motor Electromagnetic Principle Research Teaching Aids

$157.78 $321.99

Categories: Toys & Hobbies, Building & Construction Toys

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35% off
Duke Swash Plate Engine High Magnetic Brushless Motor Custom Science Teaching Physics Principle Research Static Power RC Toy Duke Swash Plate Engine High Magnetic Brushless Motor Custom Science Teaching Physics Principle Research Static Power RC Toy

Duke Swash Plate Engine High Magnetic Brushless Motor Custom Science Teaching Physics Principle Research Static Power RC Toy

$243.75 $375.00

Categories: Toys & Hobbies, Building & Construction Toys

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Fire Suction Sterling Engine Scientific Principle Invention Toy Teaching Tool Fire Suction Sterling Engine Scientific Principle Invention Toy Teaching Tool

Fire Suction Sterling Engine Scientific Principle Invention Toy Teaching Tool

$191.61 $191.61

Categories: Toys & Hobbies, Building & Construction Toys

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54% off
Watt Steam Engine Train Head Model Building Kit for Adults Kids DIY Assembly Block Scientific Principle Toy Boy Girl Gift Watt Steam Engine Train Head Model Building Kit for Adults Kids DIY Assembly Block Scientific Principle Toy Boy Girl Gift

Watt Steam Engine Train Head Model Building Kit for Adults Kids DIY Assembly Block Scientific Principle Toy Boy Girl Gift

$919.08 $1998.00

Categories: Toys & Hobbies, Building & Construction Toys

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50% off
DIY Handmade Material Bag Elementary School Mechanical Principle Experimental Set Creative Institution Teaching Aids Model DIY Handmade Material Bag Elementary School Mechanical Principle Experimental Set Creative Institution Teaching Aids Model

DIY Handmade Material Bag Elementary School Mechanical Principle Experimental Set Creative Institution Teaching Aids Model

$400.00 $800.00

Categories: Toys & Hobbies, Building & Construction Toys

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48% off
Watt Steam Engine Train Head Assembly Model DIY Scientific Principle Toy Boy Girl Gift Watt Steam Engine Train Head Assembly Model DIY Scientific Principle Toy Boy Girl Gift

Watt Steam Engine Train Head Assembly Model DIY Scientific Principle Toy Boy Girl Gift

$132.08 $254.00

Categories: Toys & Hobbies, Building & Construction Toys

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51% off
Watt Steam Engine Train Head Model Building Kit for Adults Kids DIY Assembly Block Scientific Principle Toy Boy Girl Gift Watt Steam Engine Train Head Model Building Kit for Adults Kids DIY Assembly Block Scientific Principle Toy Boy Girl Gift

Watt Steam Engine Train Head Model Building Kit for Adults Kids DIY Assembly Block Scientific Principle Toy Boy Girl Gift

$135.99 $277.53

Categories: Toys & Hobbies, Building & Construction Toys

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Fire Suction Sterling Engine Model Scientific Principle DIY Toy Teaching Fire Suction Sterling Engine Model Scientific Principle DIY Toy Teaching

Fire Suction Sterling Engine Model Scientific Principle DIY Toy Teaching

$216.79 $216.79

Categories: Toys & Hobbies, Building & Construction Toys

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45% off
New Fire Suction Stirling Engine Stainless Steel Stirling Steam Engine Scientific Principle Collection Toy Gift New Fire Suction Stirling Engine Stainless Steel Stirling Steam Engine Scientific Principle Collection Toy Gift

New Fire Suction Stirling Engine Stainless Steel Stirling Steam Engine Scientific Principle Collection Toy Gift

$241.89 $439.80

Categories: Toys & Hobbies, Building & Construction Toys

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56% off
Watt Steam Engine Train Head Model Building Kit for Adults Kids DIY Assembly Block Scientific Principle Toy Boy Girl Gift Watt Steam Engine Train Head Model Building Kit for Adults Kids DIY Assembly Block Scientific Principle Toy Boy Girl Gift

Watt Steam Engine Train Head Model Building Kit for Adults Kids DIY Assembly Block Scientific Principle Toy Boy Girl Gift

$874.45 $1987.39

Categories: Toys & Hobbies, Building & Construction Toys

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54% off
Watt Steam Engine Train Head Model Building Kits for Adults Kids DIY Assembly Scientific Principle Toy Boys Children Gift Watt Steam Engine Train Head Model Building Kits for Adults Kids DIY Assembly Scientific Principle Toy Boys Children Gift

Watt Steam Engine Train Head Model Building Kits for Adults Kids DIY Assembly Scientific Principle Toy Boys Children Gift

$913.05 $1984.89

Categories: Toys & Hobbies, Building & Construction Toys

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