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國(guó)家煤礦安全監(jiān)察局, ????

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

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

Professional Standard - Coal, ????

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

RU-GOST R, ????

HU-MSZT, ????

Indonesia Standards, ????

GSO, ????

Natural Gas Processor's Association (NGPA), ????

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

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





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