Russian standards

Pipeline fittings. Metallic and non-metallic nonorganic coatings. Process

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General purpose industrial grade pipeline fittings. Paints and coatings. General technical specifications

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Pipeline fittings. Welding of fittings to pipeline. Technical requirements

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Pipeline fittings. Incoming materials, semifinished products and components inspection

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Pipeline fittings. Production certification. Welded joints perfomance technology

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Pipeline fittings. Packing washers with easily fusible filler. Design, basic dimensions, production technique

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