Russian standards PDF
Seamless steel cylinders for working pressure below 30,0 MPa (305,9 kgf/sm2) with capacity not exceeding 100 l for transportation, storage and use of gas. Specifications
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Lighting fixtures and complexes. Terms and definitions
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Short circuit in electrical installations. Terms and definitions
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Rolling bearings. Single-row tapered bearings. Classification, guidance for application and exploitation
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Road lighting. Calculation methods of normative performances
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