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Radio-frequency cables types PK 75-13-17, PK 75-13-17-BG, PK 75-13-17-B, PK 75-13-17-Ba and PK 75-13-17-K. Specifications
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Self-ballasted LED-lamps for general lighting services by voltage over 50 V. Operating requirements
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Auxiliaries for lamps. A.C. supplied electronic ballasts for tubular fluorescent lamps. General and safety requirements
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Petroleum and natural gas industries. Shell-and-tube heat exchangers. Technical requirements
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