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BS EN 13501-3:2005+A1:2009

Действует
Fire classification of construction products and building elements. Classification using data from fire resistance tests on products and elements used in building service installations: fire resisting ducts and fire dampers — 24 стр.
BS EN 13501-3:2005
Действует
BS EN 13501-3:2005+A1:2009
Действует