NF A50-411
NF A50-411 (Aluminium and aluminium alloys. Extruded and drawn products for general use. Characteristics.)· AFNOR NF (France) · 50 materials
NF A50-411 (Aluminium and aluminium alloys. Extruded and drawn products for general use. Characteristics.)· AFNOR NF (France) · 50 materials