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Switches for household and similar fixed electrical installations. Part 2-4. Particular requirements. Isolating switches
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Polyvinyl chloride film for packaging food and medicines. Specifications
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Ductile iron fittings with parallel thread for pipelines. Caps. Basic dimensions
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Diagnostics of machines on using performance parameters. General guidelines
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Superpure substances. Method for determination of substances reducing potassium permanganate
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