Russian standards PDF

Reinforced concrete pipe culverts under highway and railway embankments. General specifications

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Spindle and arbor noses of drilling, boring and milling machines. Dimensions. Technical requirements

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Pentanes. Method for determination of the hydrocarbon compounds

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Sea water pipes steel zinc-plated. Elements longevity calculation

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Mining electrical equipment of normal production. General technical requirements and test methods

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Rubber wipers for rods. Types, basic parameters and dimensions

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