Russian standards PDF
Instrument rolling bearings. Methods of measuring hardness parts of bearings
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Welding. Guidelines for a metallic materials grouping system
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Arc welding and cutting. Nonconsumable tungsten electrodes. Classification
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Electric energy storage (EES) systems. Planning and performance assessment. General requirements
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Solid mineral fuel. Determination of water-soluble matter content and composition
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System of design documents for construction. Rules for execution of the working documentation of general layouts of enterprises, buildings and civil housing objects
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