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Bolted connections in steel structures. Measurement of the surface roughness by the height of irregularities
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Feedstuffs, compound feeds, feed raw materials. Determination of mass fraction of ammonium, potassium, sodium, magnesium and calcium cations using capillary electrophoresis
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Occupational safely standards system. Respiratory protective devices. Gas filters and combined filters. General technical requirements. Test methods. Marking
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Wood protective means. Express-method of testing inflammable protective ability
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