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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, ???? ?????





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