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Energy saving. Renewable and alternative sources of energy. Heat pumps «air-water» for hausehold thermal supply. General technical requirements and test methods
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Expansion bushes for tool with cylindrical tail and square from 3,15 to 35,5 mm. Design and dimensions
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Workplace air. Analysis of respirable crystalline silica by Fourier-Transform Infrared spectroscopy
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Liquefied hydrocarbon gases. Calculation method for determination of saturated vapour density and pressure
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