ČSN 446251 (446251)

Mine ventilation. Air ducts, flexible armoured type

STANDARD published on 1.12.1992

The information about the standard:

Designation standards: ČSN 446251
Classification mark: 446251
Catalog number: 28479
Note: WITHDRAWN
Publication date standards: 1.12.1992
The number of pages: 8
Approximate weight : 24 g (0.05 lbs)
Country: Czech technical standard
Category: Technical standards ČSN