
Determination Of The Case Hardening Thickness
出版:European Committee for Iron & Steel Standardization

专家解读视频
1971 [01/12/1971]
NFA 04 202:1984 - Equivalent
DIN 50190-1 (1978-11) - Identical
NEN EU 105:1986 - Identical
ISO 2639:2002 - Identical
BS 6479:1984 - Equivalent
BS 6481:1984 - Equivalent
NEN EU 105 : 1986 - Identical
DIN 50190-1 : 1978 - Corresponds