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Professional Standard - Hydroelectric Power, ?? ???

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, ?? ???

Professional Standard - Machinery, ?? ???

RU-GOST R, ?? ???

United States Navy, ?? ???

Japanese Industrial Standards Committee (JISC), ?? ???

Professional Standard - Railway, ?? ???

Korean Agency for Technology and Standards (KATS), ?? ???

機械電子工業部, ?? ???





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