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DE??? ????
?? 6??? ??? ????? ??? ??? ??.
?? ???? ??? ????? ??? ??? ??? ????: ?????, ??? ??.
Professional Standard - Machinery, ??? ????
Professional Standard - Electron, ??? ????
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ??? ????
GOST, ??? ????
Professional Standard - Military and Civilian Products, ??? ????