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Low-voltage switchgear and controlgear. Part 4-3. Contactors and motor-starters. Semiconductor controllers and semiconductor contactors for non-motor loads
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Turret lathe collets with eccentrically positioned cylindrical hole. Design and dimensions
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Air-cooled air conditioners and air-to-air heat pumps. Testing and calculating methods for seasonal performance factors. Part 1. Cooling seasonal performance factor
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