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publish：2025-05-08 17:43:28 views ：115

publish：2025-05-08 17:43:28

115

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22 year high-efficiency grasping and packaging device for permanent magnet ferrite magnetic sheets

22 year high-temperature resistant radial anisotropic magnetic ring

2017 permanent magnet ferrite preparation mold invention patent

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