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Products and elements of wood and wooden materials. Method of determination of hardness to scratching protective and decorative coatings
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Industrial automation systems and integration. Guide for standards implementation, structure and dictionary
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State automized technical stability system of unified time. Information carriers in local chronometric system
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State system for ensuring the uniformity of measurements. Measuring rack wheels. Methods and means of verification
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Low-voltage surge protective devices. Part 32. Surge protective devices connected to the d.c. side of photovoltaic installations. Selection and application principles
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