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publish：2025-05-08 17:43:28 views ：123

publish：2025-05-08 17:43:28

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Invention patent for pre forming method of sintered permanent ferrite in 2021

Permanent magnet ferrite grinding and forming mechanism

59df1dd0973fd84c119545e7d1c98cd

22 year anti collision and wear-resistant radial anisotropic magnetic ring