Extruded aluminum profiles, or structural profiles, are the basis of modular construction systems. The profiles are extruded in alloy 6060 (UNI 9006/1) and physical state T6, with groove of nominal 8.3 mm width and tolerances known as "half UNI" (0.5% of the dimension), treated with an electrolytic anodic oxidation process, also called anodizing. On request, the profiles can be supplied in raw or RAL painted bar while, for the use of extrusions in critical environments (saline marine or chlorinated atmosphere of swimming pools), in the naval and in the civil architecture, it is possible the hard oxidation treatment or of increased thickness.