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DE???? ?????
?? 31??? ???? ?????? ??? ??? ??.
?? ???? ???? ?????? ??? ??? ??? ????: ?? ??, ????, ?? ? ???? ??, ?? ??, ????, ??? ??, ?? ??, ??? ? ?? ??, ??.
Group Standards of the People's Republic of China, ???? ?????
American Society for Testing and Materials (ASTM), ???? ?????
SCC, ???? ?????
IL-SII, ???? ?????
未注明發(fā)布機構, ???? ?????
Professional Standard - Non-ferrous Metal, ???? ?????
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ???? ?????
RU-GOST R, ???? ?????
國家市場監(jiān)督管理總局、中國國家標準化管理委員會, ???? ?????
- GB/T 40323-2021 ?? ?? ? ?? ?? ???? ??????????????(D4), ?????????????(D5) ? ??????????????(D6) ??
中華人民共和國國家質(zhì)量監(jiān)督檢驗檢疫總局、中國國家標準化管理委員會, ???? ?????