ISO 4231:1987被替代
Hand- and machine-operated circular screwing dies for parallel pipe threads - G series
出版：International Organization for Standardization
专家解读视频
GB/T 20324-2006 - Modified
KS B 3274:2013 - Modified
BS 1127:1974 - Similar
KS B 3274:2002 - Modified
EN 24231:1989 - Equivalent
JIS B 4455:1998 - Equivalent
SNV ISO 4231:1987 - Identical
NEN ISO 4231:1990 - Identical
NBR ISO 4231:2001 - Identical
ONORM EN 24231:1990 - Identical
DIN EN 24231 (1990-06) - Identical
NF EN 24231:1990 - Identical
UNI EN 24231:1990 - Equivalent
BS 1127-3:1990 - Equivalent
DIN 5158 (1986-04) - Equivalent
NS ISO 4231 Ed. 1 (1989) - Identical
UNE 16601:1991 - Identical
SS ISO 4231 Ed. 1 (1990) - Identical
