Concrete roofing tiles and fittings for roof covering and wall cladding - Test methods; German version EN 491:2004, Corrigenda to DIN EN 491:2005-03— 2 стр.
Concrete roofing tiles and fittings for roof covering and wall cladding - Test methods; German version EN 491:2004, Corrigenda to DIN EN 491:2005-03— 2 стр.