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?? 2??? ????????? ??? ??? ??.

?? ???? ????????? ??? ??? ??? ????: ????, ????.

Group Standards of the People's Republic of China, ????????

• T/SZBX 063-2022 ????????

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ????????

• GB/T 27801-2011 ????????

??:   ????????, ??? ????? ?? ???, ??? ????? ?? ???, ?? ???????-?? ???? ?? ??? ??????? ??, ????????, ?? ???????? ??? ?? ??? ??? ??????? ??.