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DE????? ??
?? 33??? ????? ??? ??? ??? ??.
?? ???? ????? ??? ??? ??? ??? ????: ????, ?? ??, ??? ? ?? ??, ?? ??.
Taiwan Provincial Standard of the People's Republic of China, ????? ??
Korean Agency for Technology and Standards (KATS), ????? ??
Professional Standard - Non-ferrous Metal, ????? ??
Association Francaise de Normalisation, ????? ??
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ????? ??
Japanese Industrial Standards Committee (JISC), ????? ??
SCC, ????? ??
American National Standards Institute (ANSI), ????? ??
Professional Standard - Chemical Industry, ????? ??
Defense Logistics Agency, ????? ??
Professional Standard - Agriculture, ????? ??
CO-ICONTEC, ????? ??
CZ-CSN, ????? ??
American Water Works Association (AWWA), ????? ??
AENOR, ????? ??