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DE?? ??
?? 9??? ?? ??? ??? ??? ??.
?? ???? ?? ??? ??? ??? ??? ????: ??, ?? ? ???? ??.
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ?? ??
British Standards Institution (BSI), ?? ??
American Society for Testing and Materials (ASTM), ?? ??
國家市場監(jiān)督管理總局、中國國家標(biāo)準(zhǔn)化管理委員會, ?? ??
GSO, ?? ??