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Professional Standard - Energy, ??? ????

Group Standards of the People's Republic of China, ??? ????

Professional Standard - Ferrous Metallurgy, ??? ????

Professional Standard - Chemical Industry, ??? ????

Heilongjiang Provincial Standard of the People's Republic of China, ??? ????

Gosstandart of Russia, ??? ????

Professional Standard - Non-ferrous Metal, ??? ????

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

IN-BIS, ??? ????

GM Holden Ltd, ??? ????

Professional Standard - Building Materials, ??? ????

TH-TISI, ??? ????

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

Hebei Provincial Standard of the People's Republic of China, ??? ????

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

CZ-CSN, ??? ????

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

Danish Standards Foundation, ??? ????

International Organization for Standardization (ISO), ??? ????

Ente Nazionale Italiano di Unificazione, ??? ????

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

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

National Electrical Manufacturers Association(NEMA), ??? ????

Taiwan Provincial Standard of the People's Republic of China, ??? ????

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





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