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General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ???? ????

Korean Agency for Technology and Standards (KATS), ???? ????

British Standards Institution (BSI), ???? ????

Association Francaise de Normalisation, ???? ????

German Institute for Standardization, ???? ????

Japanese Industrial Standards Committee (JISC), ???? ????

European Committee for Electrotechnical Standardization(CENELEC), ???? ????

Danish Standards Foundation, ???? ????

Spanish Association for Standardization (UNE), ???? ????

International Electrotechnical Commission (IEC), ???? ????

Swedish Institute for Standards, ???? ????





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