ISO 1639:1974废止
Wrought copper alloys; Extruded sections; Mechanical properties
出版：International Organization for Standardization
专家解读视频
1974 [01/11/1974]
NFA 51 105 : 1984 - Similar to
NFA 51 117 : 1983 - Similar to
NFA 51 104 : 1993 - Similar to
NEN ISO 1639 : 1988 - Identical
NFA 51 104 : 1993 - Similar to
NFA 51 117 : 1983 - Similar to
NEN ISO 1639 : 1988 - Identical
NFA 51 105 : 1984 - Similar to
NEN ISO 1639:1988 - Identical
NFA 51 117:1983 - Similar
NFA 51 104:1993 - Similar
NFA 51 105:1984 - Similar
