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Pipeline valves. Forgings, die forgings and rolled stocks. Technical requirementsPipeline valves. Forgings, die forgings and rolled stocks. Technical requirements

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Pipeline valves. Heat treatment of parts, blanks and welded assemblies made of high-alloy steels, corrosion-resistant and heat-resistant alloys

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Pipeline valves. Heat treatment of blanks made of carbon and alloy structural steels

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Optics and photonics. Optical details. Typical technological processes of applying one-, two- and three-layer antireflection coatings from solutions

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Piezoelectric devices and electromechanical filters. General requirements for measuring parameters

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Dissectors. Methods for measuring parameters. General provisions

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