I.S. EN ISO 2639:2002现行
Steels - Determination And Verification Of The Depth Of Carburized And Hardened Cases
出版：National Standards Authority of Ireland
专家解读视频
States the case-hardened depth, and specifies methods for the determination of this depth, in steel.
SN EN ISO 2639:2003 - Identical
BS EN ISO 2639:2002 - Identical
DIN EN ISO 2639 (2003-04) - Identical
NBN EN ISO 2639:2003 - Identical
NF EN ISO 2639:2003 - Identical
UNI EN ISO 2639:2006 - Identical
NS EN ISO 2639 Ed. 1 (2002) - Identical
UNE EN ISO 2639:2004 - Identical
SS EN ISO 2639 Ed. 1 (2002) - Identical
NEN EN ISO 2639:2002 - Identical
ISO 2639:2002 - Identical
ONORM EN ISO 2639:2003 - Identical
