Russian standards PDF
Product-quality index system. Hot-water heating boilers with capacity up to 100 kW. Nomenclature of indices
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System of quality indexes for production. Core drilling rigs used in exploration of hard deposits. Nomenclature of indexes
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Refractory products. Method for determination of refractoriness-under-load
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Reagents. Bismuth (III) nitrate pentahydrate. Specifications
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