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Solar Magnetic Levitation Model Mendocino Motor Engine Science Toy - Enginediy |
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Hall Effect Sensor 3 Coil Magnetic Levitation Motor Brushless Motor Science Toy Gift |
$81.61 |
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$81.61 |
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Magnetic Levitation Motor 20000RPM High-speed Hall Effect Sensor Brushless Motor Science Toy - Enginediy |
$61.21 |
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$61.21 |
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Hot Air Stirling Engine External Combustion Engine Motor Model Education Toy Electricity Power - Enginediy |
$61.20 |
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$61.20 |
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Free Piston Stirling Engine Motor Model Speed Adjustable Stem Toy Gift for Children Adults |
$81.50 |
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$81.50 |
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