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Pneumatic brake equipment of the railway rolling stock. Safety requirements and inspection methods. Part 4. Brake electric air distributors and devices performing their functions
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Optics and photonics. Centering machines for processing optical parts. Basic parameters and dimensions
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Analogous transformers measuring current, voltage, capacity, frequency, resistance. General specifications
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Low-voltage switchgear and controlgear enclosed equipment. Part 1. Enclosed switch-disconnectors outside the scope of IEC 60947-3 to provide isolation during repair and maintenance work
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