Language
GB /T 16824.1 - 1997
GB /T 16824.2 - 1997
UNI 6949 - 1980
GB /T 16824.1 - 2016
NF E 25-662 - 1994
GB 9456 - 1988
GB 5285 - 1985
YJT 4063 (WN1446C)
CNS 4308 - 2000
IFI 502 - 1982
ASME/ANSI B 18.6.3 - 2010
JIS B 1127 - 1995
JIS B 1123 - 1996
JIS B 1126 - 1995
AS /NZS 4410 - 1996
AS /NZS 4409 - 1996