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DE?? ???? ??
?? 12??? ?? ???? ??? ??? ??? ??.
?? ???? ?? ???? ??? ??? ??? ??? ????: ?? ??, ????.
GSO, ?? ???? ??
Association Francaise de Normalisation, ?? ???? ??
Korean Agency for Technology and Standards (KATS), ?? ???? ??
SCC, ?? ???? ??
German Institute for Standardization, ?? ???? ??
International Organization for Standardization (ISO), ?? ???? ??
KR-KS, ?? ???? ??