UNE-EN 2257:1997

Material aeroespacial. Tubos circulares para estructuras de aluminio y sus aleaciones. Diámetros 6 mm <= D <= 100 mm. Espesores 1 mm <= a <= 6 mm. Dimensiones.

AEROSPACE SERIES. CIRCULAR TUBES FOR STRUCTURES IN ALUMINIUM AND ALUMINIUM ALLOYS. DIAMETER 6 MM <= D <= 100 MM. THICKNESS 1 MM <= A <= 6 MM. DIMENSIONS.

SÉRIE AÉROSPATIALE. TUBES CIRCULAIRES POUR STRUCTURES EN ALUMINIUM ET ALLIAGES D'ALUMINIUM. DIAMÈTRES 6 MM <= D <= 100 MM. EPAISSEURS 1 MM <= A <= 6 MM. DIMENSIONS.