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DE? ??? ??
?? 11??? ? ??? ??? ??? ??? ??.
?? ???? ? ??? ??? ??? ??? ??? ????: ???, ??, ??, ?? ??, ?? ??, ??.
Professional Standard - Traffic, ? ??? ??
RU-GOST R, ? ??? ??
International Organization for Standardization (ISO), ? ??? ??
PL-PKN, ? ??? ??
Korean Agency for Technology and Standards (KATS), ? ??? ??
Professional Standard - Agriculture, ? ??? ??
國(guó)家煤炭工業(yè)局, ? ??? ??