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DE?? ? ?? ??
?? 7??? ?? ? ?? ??? ??? ??? ??.
?? ???? ?? ? ?? ??? ??? ??? ??? ????: ?? ? ??, ????, ??? ??, ??? ? ??.
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ?? ? ?? ??
Professional Standard - Grain, ?? ? ?? ??
Professional Standard - Agriculture, ?? ? ?? ??
Hunan Provincial Standard of the People's Republic of China, ?? ? ?? ??
Group Standards of the People's Republic of China, ?? ? ?? ??