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Refrigerating systems and heat pumps. Valves. Requirements, testing and marking
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Moulding sands. Methods for determination of calcium oxide
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Milk and milk products. Methods for determination of the bifidobacteria
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Electronics automated design systems. Information support. Technical characteristics of electronic components. Optoelectronic devices. Classification
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Alloys and foundry alloys of rare metals. Method for determination of cobalt
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Automobile roads of general use. Flexible road pavement. Standard design
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