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Professional Standard - Machinery, ?? ? ? ??? ??

Professional Standard - Education, ?? ? ? ??? ??

North Atlantic Treaty Organization Standards Agency, ?? ? ? ??? ??

NATO - North Atlantic Treaty Organization, ?? ? ? ??? ??

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Professional Standard - Commodity Inspection, ?? ? ? ??? ??

American Society for Testing and Materials (ASTM), ?? ? ? ??? ??

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

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

DIN, ?? ? ? ??? ??

SCC, ?? ? ? ??? ??

工業(yè)和信息化部/國(guó)家能源局, ?? ? ? ??? ??

BSI, ?? ? ? ??? ??

National Metrological Verification Regulations of the People's Republic of China, ?? ? ? ??? ??





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