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DE?? ???
?? 56??? ?? ???? ??? ??? ??.
?? ???? ?? ???? ??? ??? ??? ????: ???, ???? ? ?? ????, ?? ? ?? ??, ??, ????, ?? ??, ?? ? ?? ???, ?? ?? ? ??, ?? ??, ?? ??, ??? ??, ?? ??, ??? ? ?? ??.
American Society for Testing and Materials (ASTM), ?? ???
U.S. Air Force, ?? ???
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ?? ???
German Institute for Standardization, ?? ???
U.S. Military Regulations and Norms, ?? ???
Professional Standard - Traffic, ?? ???
ET-QSAE, ?? ???
SCC, ?? ???
Professional Standard - Aerospace, ?? ???
Professional Standard - Non-ferrous Metal, ?? ???
National Metrological Verification Regulations of the People's Republic of China, ?? ???
Korean Agency for Technology and Standards (KATS), ?? ???
Standard Association of Australia (SAA), ?? ???
Association Francaise de Normalisation, ?? ???
Taiwan Provincial Standard of the People's Republic of China, ?? ???