tthung 发表于 2013-11-16 13:21:39

求助 IEC 60404-2-2008

IEC 60404-2 ed3.1 Consol. with am1 (2008-06)
Magnetic materials - Part 2: Methods of measurement of the magnetic properties of electrical steel strip and sheet by means of an Epstein frame

sigh007 发表于 2013-11-16 13:21:40

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