E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
E04C5/03—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance with indentations, projections, ribs, or the like, for augmenting the adherence to the concrete
Procédé de fabrication de cordes destinées à être soumises à des tractions, notamment de cordes pour raquettes et instruments de musique, et cordes ainsi obtenues