N52 Ring 30x5-20 30x10-20 magnets Hole 20 Scooter Motor Aimant Search Fridge Generator factory Customised Diy Fridge Science

N52 Ring 30x5-20 30x10-20 magnets Hole 20 Scooter Motor Aimant Search Fridge Generator factory Customised Diy Fridge Science

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