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DE??? ??? ??
?? 14??? ??? ??? ??? ??? ??? ??.
?? ???? ??? ??? ??? ??? ??? ??? ????: ??, ???? ? ?? ??, ?? ??, ?? ??.
Korean Agency for Technology and Standards (KATS), ??? ??? ??
SCC, ??? ??? ??
Professional Standard - Recommended Standards for Engineering Construction, ??? ??? ??
DIN, ??? ??? ??
Shanghai Provincial Standard of the People's Republic of China, ??? ??? ??
Group Standards of the People's Republic of China, ??? ??? ??