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DE?? ??
?? 5??? ?? ??? ??? ??? ??.
?? ???? ?? ??? ??? ??? ??? ????: ?? ??? ? ??? ???? ??, ?? ??.
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ?? ??
Group Standards of the People's Republic of China, ?? ??
Korean Agency for Technology and Standards (KATS), ?? ??
Jilin Provincial Standard of the People's Republic of China, ?? ??