K&J Magnetics: D42
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National Magnetics Group, Inc. -
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Magnetics - Supplier of Precision Soft Magnetic Components
Self Adhesive Magnetic Sheets, All Sizes & Pack Quantity for Photos & Crafts, By Flexible Magnets- 8.5x11 20 mil - 2 pack - Walmart.com
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Foster by Visual Magnetics
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Magnetic dipole - Wikipedia
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