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DIN EN 54-12:2015-10

Действует
Fire detection and fire alarm systems - Part 12: Smoke detectors - Line detectors using an optical beam; German version EN 54-12:2015 — 75 стр.
Fire detection and fire alarm systems - Part 12: Smoke detectors - Line detectors using an optical beam; German version EN 54-12:2015, Corrigendum to DIN EN 54-12:2015-10