ISO 657-1:1989现行
Hot-rolled steel sections Part 1: Equal-leg angles - Dimensions
出版：International Organization for Standardization
专家解读视频
NS 2659 Ed. 3 (1982) - Identical
JIS G 3192:2005 - Identical
KS D ISO 657-1:2013 - Identical
KS D 3502:2015 - Modified
KS D 3502:2013 - Modified
KS D ISO 657-1:2004 - Identical
DIN 1028 (1994-03) - Similar
BS 4848-4:1972 - Equivalent
UNE 25223:1971 - Identical
