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DE?? ????
?? 9??? ?? ????? ??? ??? ??.
?? ???? ?? ????? ??? ??? ??? ????: ?? ??, ??, ?? ? ?? ??.
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ?? ????
SCC, ?? ????
國(guó)家市場(chǎng)監(jiān)督管理總局、中國(guó)國(guó)家標(biāo)準(zhǔn)化管理委員會(huì), ?? ????
- GB/T 2680-2021 ??? ??? ???? ???, ???? ???, ? ?? ??? ???, ??? ??? ? ?? ??? ???? ??
Group Standards of the People's Republic of China, ?? ????