UNE-EN 2053:2017 Aerospace series - U-section aluminium alloy folded profiles - Dimensions (Endorsed by Asociación Española de Normalización in September of 2017.)
2017UNE-EN 2053:2017 Aerospace series - U-section aluminium alloy folded profiles - Dimensions (Endorsed by Asociación Española de Normalización in September of 2017.)