Language
GB /T 16939 - 1997
JIS A 5540 - 2008
GB 25 - 1976
GB 32.1 - 1988
GB /T 16939 - 2016
GB /T 32.3 - 2020
CNS 4433 - 1993
CNS 4434 - 1993
CNS 4251 - 1980
GOST 7798 - 1970
GOST 7805 (-3) - 1970
GOST 7811 (-3) - 1970
YJT 4016
SAE AS 4862 - 1995 (R2007)
SAE AS 4863 - 1995 (R2015)
ASME/ANSI B 18.6.3 - 2010