Russian standards PDF
Atomic power station technological processes control system equipment. General
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Coniferous sawn timber of northern grading supplied for export. Specifications
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Means for guarding. Fire and guarding fire signalization. Type, basic parameters and dimensions
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System of ensuring geometrical parameters accuracy in construction. Rules of measurement. Prefabricated elements
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Data transmission system signal conversion modulus for unswitched voice-frequency channels. Types and basic parameters
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