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DE?? ???
?? 17??? ?? ???? ??? ??? ??.
?? ???? ?? ???? ??? ??? ??? ????: ?????, ??? ??, ?? ? ?? ??, ?? ?? ? ??.
National Metrological Technical Specifications of the People's Republic of China, ?? ???
Military Standard of the People's Republic of China-General Armament Department, ?? ???
National Metrological Verification Regulations of the People's Republic of China, ?? ???
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ?? ???
Professional Standard - Machinery, ?? ???
Military Standard of the People's Republic of China-Commission of Science,Technology and Industry for National Defence, ?? ???
Professional Standard - Aviation, ?? ???
Professional Standard - Military and Civilian Products, ?? ???
Group Standards of the People's Republic of China, ?? ???