Abstract: Ringed staple (1), or staple that when closed takes the approximate form of a ring, that presents a cross-section (3) with a substantially straight part (6) and a non-straight part (5), preferably curved circular. The non-straight part (5) corresponds with the exterior area (14) of the staple (1), whereas the substantially straight part (6) corresponds with the interior area (13) of the staple (1). The staple (1) requires less material and provides certain improved features than conventional staples (8, 10) with a substantially circular cross-section (9) or a substantially rectangular cross section (11).

Abstract: A process and device for tying metal reinforcement and/or mesh structures wherein U-shaped clips having bent and generally diverging arms are placed at the crossings of the rod to be tied together and engage twice on each of the rods of the crossing, the arm ends being closed by being twisted until a portion of the ends ruptures, the twisting being performed by a substantially longitudinal tool having at the front jaws which in the open state close on the clip ends, turn and twist the same and finally break the ends leaving them twisted, the jaws returning to the same initial position.

Abstract: A process for tying metal reinforcement and/or mesh structures wherein U-shaped clips having bent and generally diverging arms are placed at the crossings of the rod to be tied together and engage twice on each of the rods of the crossing, the arm ends being closed by being twisted until a portion of the ends ruptures, the twisting being performed by a substantially longitudinal tool having at the front jaws which in the open state close on the clip ends, turn and twist the same and finally break the ends leaving them twisted, the jaws returning to the same initial position.