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Hexagon-head step-point with cone set screws. Product grades a and b. Construction and dimensions

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Hard coal. Determination of the crucible swelling number

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Environmental protection. Biological diversity. Organization and procedure for assessing the impact of economic and other activities on biological diversity

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Electric power industry. Control systems of electric power consumption from public power supply systems. Terms and definitions

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Refractories and refractory raw materials. Methods for the determination of calcium oxide

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State system for ensuring the uniformity of measurements. LED. Methods of photometric measurements

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