DIN 21605 - DRAFT

Draft Document - Auxiliary ventilation for mining - Flexible plastic ventilation ducts for exhaust and forced ventilation - Spiral ventilation ducts

Deutsches Institut Fur Normung E.V. (German National Standard) , 04/01/2009

Publisher: DIN

File Format: PDF

$22.00$45.00

Published: 04/01/2009

Pages: 8

File Size: 1 file

Language: German

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