The fibers and mats reinforcements are brought about through a special bath where they are slowly impregnated by a matrix made with resin and additives. The resin formulation is determined to be precisely compliant with specific requirements of each profile. The impregnated fibers are first pulled to the performer system in order to process in the correct configuration, and then lead through a high temperature heated die to be polymerized. The continuous profile, at the end of the line, is pulling continuously and cut at the desired length to give the final product that can be endly packaged.