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?? 43??? ????? ??? ??? ??.
?? ???? ????? ??? ??? ??? ????: ?????, ???, ?? ?? ??, ?? ??, ??, ??, ?? ? ?? ??, ???? ??, ??, ??? ? ??? ??, ????, ????, ??? ??, ??, ?? ??, ??, ??, ?? ??, ?? ??, ?? ??.
Professional Standard - Ferrous Metallurgy, ????
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ????
The American Road & Transportation Builders Association, ????
Korean Agency for Technology and Standards (KATS), ????
PL-PKN, ????
SCC, ????
Japanese Industrial Standards Committee (JISC), ????
Professional Standard - Agriculture, ????
American Society for Testing and Materials (ASTM), ????
International Organization for Standardization (ISO), ????
Danish Standards Foundation, ????
未注明發(fā)布機(jī)構(gòu), ????
AENOR, ????
AASHTO - American Association of State Highway and Transportation Officials, ????