Language
ASME B 17.2 (T2) - 1967 (R2013)
W
ASME B 17.2 (T1) - 1967 (R2013)
ISO 3912 - 1977
GB /T 1099.1 - 2003
ASME/ANSI B 18.25.2M - 1996 (R2008)
UNI 6606
GB /T 1099 - 1990