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DE? ???? ??
?? 31??? ? ???? ??? ??? ??? ??.
?? ???? ? ???? ??? ??? ??? ??? ????: ?? ???, ??, ?? ?? ? ?? ??? ??, ?? ? ??, ???, ???, ???, ????, ??? ? ?? ??, ??, ?? ? ? ??.
GSO, ? ???? ??
Association Francaise de Normalisation, ? ???? ??
International Organization for Standardization (ISO), ? ???? ??
Professional Standard - Agriculture, ? ???? ??
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ? ???? ??
Anhui Provincial Standard of the People's Republic of China, ? ???? ??
Group Standards of the People's Republic of China, ? ???? ??
Shaanxi Provincial Standard of the People's Republic of China, ? ???? ??
Jiangsu Provincial Standard of the People's Republic of China, ? ???? ??
Sichuan Provincial Standard of the People's Republic of China, ? ???? ??
Henan Provincial Standard of the People's Republic of China, ? ???? ??
Professional Standard - Meteorology, ? ???? ??
Professional Standard - Commodity Inspection, ? ???? ??
Shandong Provincial Standard of the People's Republic of China, ? ???? ??
Hubei Provincial Standard of the People's Republic of China, ? ???? ??
SCC, ? ???? ??
Danish Standards Foundation, ? ???? ??