with indentations, projections, ribs, or the like, for augmenting the adherence to the concrete

Full Title

Reinforcing elements, e.g. for concrete; Auxiliary elements therefor ( material composition C21, C22) > Reinforcing elements of metal, e.g. with non-structural coatings > of low bending resistance, i.e. of essentially one-dimensional [1D] or two-dimensional [2D] extent > with indentations, projections, ribs, or the like, for augmenting the adherence to the concrete