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DE???? ????
?? 23??? ???? ????? ??? ??? ??.
?? ???? ???? ????? ??? ??? ??? ????: ??? ??, ?? ??, ??? ??, ????, ?? ??, ???, ?? ??.
Taiwan Provincial Standard of the People's Republic of China, ???? ????
American Society for Testing and Materials (ASTM), ???? ????
SCC, ???? ????
Professional Standard - Geology, ???? ????
Professional Standard - Ferrous Metallurgy, ???? ????
Japanese Industrial Standards Committee (JISC), ???? ????
U.S. Military Regulations and Norms, ???? ????
Professional Standard - Chemical Industry, ???? ????
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ???? ????
British Standards Institution (BSI), ???? ????
Professional Standard - Non-ferrous Metal, ???? ????
RO-ASRO, ???? ????
ES-AENOR, ???? ????