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?? 49??? ??? ??? ??? ??.
?? ???? ??? ??? ??? ??? ????: ?? ???, ??? ? ???, ???, ??, ?? ?? ??, ???, ?? ??? ? ??? ??, ?? ??, ?? ? ?? ??, ????, ??? ???, ????.
Group Standards of the People's Republic of China, ??
International Organization for Standardization (ISO), ??
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ??
British Standards Institution (BSI), ??
Spanish Association for Standardization (UNE), ??
API - American Petroleum Institute, ??
American Society for Testing and Materials (ASTM), ??
海關總署, ??
German Institute for Standardization, ??
VDI - Verein Deutscher Ingenieure, ??
中華人民共和國國家質量監督檢驗檢疫總局、中國國家標準化管理委員會, ??
Japanese Industrial Standards Committee (JISC), ??
國家文物局, ??
Society of Automotive Engineers (SAE), ??