Rare earth metals, such as metallic neodymium and metallic didymium (metallic praseodymium-neodymium), are used for rare earth magnets, mainly neodymium-iron-boron magnet.
稀土金
，如金
和金皮（金
，） ，用于稀土磁铁，主要铁
磁铁。
混合物Rare earth metals, such as metallic neodymium and metallic didymium (metallic praseodymium-neodymium), are used for rare earth magnets, mainly neodymium-iron-boron magnet.
稀土金，如金和金皮（金，） ，用于稀土磁铁，主要铁磁铁。
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