Language
GB /T 15856.4 - 2002
GB /T 15856.4 - 1995
ASME/ANSI B 18.6.5M (T21) - 2000 (R2010)
ISO 10509 - 2012
ISO 10509 - 1992
GB /T 16824.2 - 2016
BS 7600 - 1992
GB /T 16824.2 - 1997
JIS B 1127 - 1995
IFI 502 - 1982
AS /NZS 4410 - 1996
KS B 1064 - 1997
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