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Vacuum technology. Mounting dimensions of pipeline fittings. Part 1. Non knife-edge flange type
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Letter symbols to be used in electrical technology. Part 4. Rotating electric machines
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Textiles. Determination of fabric propensity to surface pilling, fuzzing or matting. Part 1. Pilling box method
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Low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Electrical safety. Equipment for testing, measuring or monitoring of protective measures. Part 6. Residual current operated protective devices in TT, TN and IT systems
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Pipeline valves. Brass ball valves. General specifications
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