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Amazon.com: Keychain Magnet for Testing Brass,Keychain Pocket Magnets for Purse with Strong Magnetic Rare Earth Neodymium,Gold,Silver, Jewelry,Ferrous Metals Test Magnet Hanging Keys Holder WELLZEER (2PACK-D12mm) : Industrial & Scientific
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Pot magnet cylindrical with fitting tolerance h6 (brass), Neodymium - SELOS - Experts on magnetics from 1991.
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Recovery of rare earth elements from NdFeB magnet by mono- and bifunctional mesoporous silica: Waste recycling strategies and perspectives - ScienceDirect
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