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Professional Standard - Machinery, ?? ??

Group Standards of the People's Republic of China, ?? ??

Professional Standard - Chemical Industry, ?? ??

Professional Standard - Light Industry, ?? ??

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

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

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

Professional Standard - Automobile, ?? ??





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