DIN 21639:1999-09

Power assisted air gates - Travel-way air locks - Type doors with pressure.

NORMA vydaná dňa 1.9.1999

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The information about the standard:

Designation standards: DIN 21639:1999-09
Note: NEPLATNÁ
Publication date standards: 1.9.1999
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: German technical standard
Kategória: Technické normy DIN

Annotation of standard text DIN 21639:1999-09 :

Wetterbauwerke für den Bergbau - Fahrwegschleusen - Druckentlastete Wettertüren.