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Pipelines valves. Gaskets of oval, octagonal section, lens steel for valves flanges. Design, dimension and general technical requirements
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Corrosion-resistant steels and alloys. Test methods of intercrystalline corrosion resistance
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Fire fighting equipment. Face masks of personal respiratory protective devices. General technical requirements. Test methods
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Sorted waste of industry of woolen and half-woolen textile materials. Specification
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Automatic presses for finishing stamping. Basic parameters and dimensions
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