The black annealed wire (SMN) is made of cold drawn wire, which is subjected to the heat treatment, annealing. The black annealed wire has a wide range of uses, being for the construction field when connecting the reinforcement elements and fixing the shutters or (especially for vine and fruit growing), in households (for fixing and strengthening the fence mesh), for fabrics and braids, for the creation of simple joints between pillars or frames fence.