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DE?? ???
?? 27??? ?? ???? ??? ??? ??.
?? ???? ?? ???? ??? ??? ??? ????: ?? ?? ? ??, ?? ??, ?? ??, ???, ???, ???, ?????, ??? ??, ??(?? ? ??).
National Metrological Technical Specifications of the People's Republic of China, ?? ???
Group Standards of the People's Republic of China, ?? ???
National Metrological Verification Regulations of the People's Republic of China, ?? ???
Professional Standard - Traffic, ?? ???
Shanxi Provincial Standard of the People's Republic of China, ?? ???
Korean Agency for Technology and Standards (KATS), ?? ???
Military Standard of the People's Republic of China-General Armament Department, ?? ???
British Standards Institution (BSI), ?? ???