ZH
EN
JP
ES
RU
DE?? ??
?? 18??? ?? ??? ??? ??? ??.
?? ???? ?? ??? ??? ??? ??? ????: ??? ? ? ?? ?? ??, ?? ? ?? ??, ????, ??, ???? ? ?? ??, ??, ???? ?? ?? ? ???, ??.
HU-MSZT, ?? ??
IX-EU/EC, ?? ??
Jilin Provincial Standard of the People's Republic of China, ?? ??
Group Standards of the People's Republic of China, ?? ??
Korean Agency for Technology and Standards (KATS), ?? ??
Professional Standard - Nuclear Industry, ?? ??
CZ-CSN, ?? ??
AENOR, ?? ??
Association of German Mechanical Engineers, ?? ??
Defense Logistics Agency, ?? ??
Professional Standard - Construction Industry, ?? ??