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DE?? ?? ??
?? 90??? ?? ?? ??? ??? ??? ??.
?? ???? ?? ?? ??? ??? ??? ??? ????: ?? ? ?? ?? ??, ?? ? ?? ??, ??, ??, ?? ? ?? ??, ????, ?, ??, ?? ??, ??, ??, ???, ??? ??, ?? ?? ???, ??? ???, ?? ? ?? ???, ?? ??, ???, ???, ???, ???, ??? ? ??? ?????.
National Metrological Technical Specifications of the People's Republic of China, ?? ?? ??
Professional Standard - Petroleum, ?? ?? ??
Group Standards of the People's Republic of China, ?? ?? ??
National Metrological Verification Regulations of the People's Republic of China, ?? ?? ??
國家能源局, ?? ?? ??
廊坊市市場監(jiān)督管理局, ?? ?? ??
Hebei Provincial Standard of the People's Republic of China, ?? ?? ??
Professional Standard - Machinery, ?? ?? ??
Professional Standard - Electron, ?? ?? ??
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ?? ?? ??
Professional Standard - Non-ferrous Metal, ?? ?? ??
Professional Standard - Coal, ?? ?? ??
Professional Standard - Military and Civilian Products, ?? ?? ??
Military Standard of the People's Republic of China-Commission of Science,Technology and Industry for National Defence, ?? ?? ??
Military Standard of the People's Republic of China-General Armament Department, ?? ?? ??