eks 发表于 2020-5-8 14:53:09

EN 54-7:2018

EN 54-7:2018
Fire detection and fire alarm systems —
Part 7: Smoke detectors — Point detectors using scattered light, transmitted light or ionization
Publication Date: 06 September 2018

329220192 发表于 2020-5-8 14:53:10

http://bbs.infoeach.com/forum.php?mod=viewthread&tid=235698&extra=

BS EN 54-7:2018
Fire detection and fire alarm systems —
Part 7: Smoke detectors — Point detectors using scattered light, transmitted light or ionization
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