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DE??? ???? ???
?? 5??? ??? ???? ???? ??? ??? ??.
?? ???? ??? ???? ???? ??? ??? ??? ????: ?? ? ??, ?? ??, ??? ??, ??? ? ??, ??.
Xinjiang Provincial Standard of the People's Republic of China, ??? ???? ???
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ??? ???? ???
Professional Standard - Supply and Marketing Cooperative, ??? ???? ???
Tianjin Provincial Standard of the People's Republic of China, ??? ???? ???