Russian standards PDF

Bent branches and elbows at line bends for steel pipelines. Specifications

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Buildings and structures. Methods for mеаsuring the luminance

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Concretes. Rules for control and assessment of strength

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Water-tube boilers and auxiliary installations. Part 17. Guidelines for the involvement of an inspection body independent of the manufacturer

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Soils. Laboratory methods for determination of calcium carbonate content

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Stationary steam turbine. Norms of calculation for strength of cylinder and valve casings

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