State system for ensuring the uniformity of measurements. State verification schedule for measuring instruments of standard lightning and switching impulse electrical voltage in the range from 1 to 1000 kV
Services of housing maintenance, public utilities and administration of apartment buildings. Services of in-house cold water supply systems maintenance of apartment buildings. General requirements
Load carrying base structures for electronic equipment practices. Part 2-5. Sectional specification. Interface co-ordination dimensions for the 25mm equipment practice. Cabinet interface dimensions for miscellaneous equipment
€10
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