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Textiles. Quantitative chemical analysis. Part 15. Mixtures of jute and certain animal fibres (method by determining nitrogen content)
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Welding production qualification system. Part 4. Welding consumables qualification. Rules
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Cosmic x-rays of the discrete sources. Energy spectra and angular coordinates
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Mining equipment. Multipurpose safety systems for coal mines. Informational ensuring. Classification and coding of classes
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