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Pipeline fittings. Periodical tests of bellows. General requirements
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Pipeline fittings. Production certification. Welded joints perfomance technology
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Pipeline fittings. Heat treatment of blanks made of carbon and alloyed structural steels. Typical process
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Pipeline fittings. Packing washers with easily fusible filler. Design, basic dimensions, production technique
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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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