Technical rule
[CURRENT]
ONR 23850:2016-07-15
Modifications on existing fire and smoke control doors and shutters
- German title
- Änderungen an bestehenden Feuer- und Rauchschutzabschlüssen
- Publication date
-
2016-07-15
- Original language
-
German
- Pages
- 11
- Publication date
-
2016-07-15
- Original language
-
German
- Pages
- 11
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