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 3. Loop impedance
United system of corrosion and ageing protection. Corrosion resistant steels and alloys. Methods of accelerated tests for resistance to pitting corrosion
Medical-social expertise. Document circulation in federal state institutes of medical-social expertise. Printed and electronic forms of input and output documents
€10
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