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DE??? ?? ??
?? 15??? ??? ?? ??? ??? ??? ??.
?? ???? ??? ?? ??? ??? ??? ??? ????: ?? ??, ?? ?? ???, ????.
YU-JUS, ??? ?? ??
Taiwan Provincial Standard of the People's Republic of China, ??? ?? ??
Professional Standard - Commodity Inspection, ??? ?? ??
Professional Standard - Non-ferrous Metal, ??? ?? ??
Professional Standard - Machinery, ??? ?? ??
Professional Standard - Aviation, ??? ?? ??
CZ-CSN, ??? ?? ??
International Organization for Standardization (ISO), ??? ?? ??