2017 neodymium iron ferrite mold preparation invention patent

publish：2025-05-08 18:41:33 views ：142

publish：2025-05-08 18:41:33

142

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Permanent magnet ferrite grinding and forming mechanism

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

22 year combined radial anisotropic magnetic ring

2017 neodymium iron ferrite mold preparation invention patent