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DE??? X? ?? ??
?? 6??? ??? X? ?? ??? ??? ??? ??.
?? ???? ??? X? ?? ??? ??? ??? ??? ????: ?? ??.
International Organization for Standardization (ISO), ??? X? ?? ??
British Standards Institution (BSI), ??? X? ?? ??
Japanese Industrial Standards Committee (JISC), ??? X? ?? ??
Korean Agency for Technology and Standards (KATS), ??? X? ?? ??
KR-KS, ??? X? ?? ??