IEC 61631:2001 EN_D 9fb9cc76
Test method for the mechanical strength of cores made of magnetic oxides
REVISED
发布日期 :
2001-06-27
实施日期 :
IEC 61631:2020 EN-FR 457c8e67
Test method for the mechanical strength of cores made of magnetic oxides
现行
发布日期 :
2020-05-07
实施日期 :