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Xinjiang Provincial Standard of the People's Republic of China, ?? ??

Gosstandart of Russia, ?? ??

British Standards Institution (BSI), ?? ??

AT-ON, ?? ??

Swedish Institute for Standards, ?? ??

Professional Standard - Agriculture, ?? ??

PL-PKN, ?? ??

German Institute for Standardization, ?? ??

The American Road & Transportation Builders Association, ?? ??

Standard Association of Australia (SAA), ?? ??

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





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