Language
EN 1665 (R) - 1997
GB /T 16674.2 (R) - 2004
GB 5790 - 1986
GB /T 5788 - 1986
GB /T 16674.2 (R) - 2016
DIN EN 1665 (R) - 1998
DIN 6922 - 1983
ASME B 18.6.3 (T32) - 2013
GB /T 16674.1 (R) - 2016
JIS B 1189 (ISO 15071 R) - 2014
JIS B 1189 (ISO 15072 R) - 2014
GB /T 16674.1 (R) - 2004