Language
NF E 25-754 - 1992 (R2002)
NF E 25-753 - 1992 (R2002)
GB /T 880 - 1986
SAE J 493 - 1961
IS 6862 - 2005
IS 6863 - 2005
ASME/ANSI B 18.8.1 - 2000
ASME/ANSI B 18.8.8M - 1994