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DE?? ??
?? 8??? ?? ??? ??? ??? ??.
?? ???? ?? ??? ??? ??? ??? ????: ?? ?? ? ??, ?? ? ?? ???, ?? ? ??, ???, ????.
Professional Standard - Commodity Inspection, ?? ??
SCC, ?? ??
GM North America, ?? ??
American National Standards Institute （ANSI), ?? ??
Henan Provincial Standard of the People's Republic of China, ?? ??
Group Standards of the People's Republic of China, ?? ??