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Adjustable speed electrical power drive systems. Part 5-1. Safety requirements. Electrical, thermal and energy safety
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Coating materials. Corrosion protection of steel structures by coating systems. Part 4. Types of surfaces and their preparation
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Automated control systems of technological processes and technical facilities for railway transport. Software functional and information safety requirements and control methods
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Steels alloyed and highalloyed. Methods for the, determination of aluminium
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