Fettite magnets are made through powder metallurgy by mixing barium or strontium with Fe 2 O 3.

  • 铁氧体德主要成分是钡或锶和三氧化铁,通过粉末冶金的制造工艺而生成.

  • 互联网摘选 2025-01-19 10:17:22

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