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DE??? ?? ??
?? 9??? ??? ?? ??? ??? ??? ??.
?? ???? ??? ?? ??? ??? ??? ??? ????: ?? ? ?? ??, ??, ??, ?? ? ?? ??, ???, ??? ?? ? ?? ??, ??? ??, ???? ??.
Professional Standard - Machinery, ??? ?? ??
Fujian Provincial Standard of the People's Republic of China, ??? ?? ??
Professional Standard - Commodity Inspection, ??? ?? ??
BE-NBN, ??? ?? ??
Professional Standard - Energy, ??? ?? ??
Military Standard of the People's Republic of China-General Armament Department, ??? ?? ??
Group Standards of the People's Republic of China, ??? ?? ??