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GB/T 17951-2022 硬磁材料一般技術(shù)條件 Specification for magnetically hard materials2023-06-06

ASTM F2213-2017 測(cè)量磁共振環(huán)境中醫(yī)療設(shè)備磁感應(yīng)扭矩測(cè)量方法 Standard Test Method for Measurement of Magnetica...2023-06-03

EN IEC 60404-6-2018Magnetic materials - Part 6: Methods of measurement of the magnetic properties of magneti...2023-04-22

GB/T 17951-2022硬磁材料一般技術(shù)條件Specification for magnetically hard materials2022-10-26