A base or lower terminal for adjusting and closing roll-up metal doors, essentially characterized in that it is constituted by a piece of initially rectangular shape which, by stamping, is shaped so as to be with longitudinal bends immediately to its upper edge and with one or more longitudinal bends in the lower part of adjustment of the terminal to the ground, starting from the lowest of the latter a flat portion of the plate that constitutes the base that is arranged orthogonally to the vertical wall of the same making it remain established by an angular body of a single piece by itself practically indeformable. (Machine-translation by Google Translate, not legally binding)
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