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Simple mechanical pendulum clock principle model 3D printing parts assembly teaching large pendulum gear set
- Model #: WD-F3255
- $50.98 –
- Free Shipping

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Suitable for voice coil motor linear motor slider guide
- Model #: WD-F3885
- $343.55 –
- Free Shipping

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Mechanical model 3D printing escapement structure principle device spring power gear transmission
- Model #: WD-F3252
- $50.71 –
- Free Shipping