Pipeline fittings. Periodical tests of bellows. General requirements
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Pipeline fittings. Methodological instructive regulations for carrying heat calculation of valves for Nuclear Power Plants
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Pipeline fittings. Passivating treatment of blanks, castings, assemblies and parts made of corrosion-resistant steels and alloys
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Pipeline fittings. Heat treatment of parts, blanks and welded assemblies made of high-alloy steels, corrosion resistant and heat-resistant alloys
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Pipeline fittings. Screw-type cylindrical springs. Procedure for calculation
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