Language
NF E 22-111 - 1969
NF E 27-413 - 1959
CNS 4433 - 1993
CNS 4434 - 1993
CNS 4732 - 1984
CNS 4462 - 1978
CNS 4465 - 1978
CNS 4474 - 1978
DIN 981 (KM) - 1983
GB 807 - 1988
GB 812 - 1988
GB /T 9160.2 (KM) - 2017
GB /T 9160.2 (KML) - 2017
GB /T 9160.2 (HM) - 2017
GB /T 9160.2 (HML) - 2017
GB /T 9160.2 (KM) - 2006
GB /T 9160.2 (KML) - 2006
GB /T 9160.2 (HM) - 2006
GB /T 9160.2 (HML) - 2006
GB 2152 - 1991