Russian standards PDF
Sealing materials used in joints of aerodrome coats. General specifications
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Rubber compression-types for windows and doors. Specifications
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Parts and assembly units of universal assembly devices for metal-cutting machines. Basic parameters. Constructive elements. Norms of accuracy
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Noise. Determination of performances of silencers in situ tests
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Noise of machines. Industrial fans. Determination of sound power levels under laboratory conditions. Part 3. Enveloping surface method
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