Russian standards PDF
Mains busways up to 1200 V, dc. General technical conditions
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Lubricating greases. Method of mechanical stability determination
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Treated for fire-resistance cotton fabrics. Specifications
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Instruments for measurement of surface roughness by the profile method. Contact profilographs and profilometers. Types and main
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Centrifugal moulds with threaded shank and centrifugal locks. Construction and dimensions
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