Aluminium system profiles without thermal insulation, mainly destined to interior buildings: boxes, division walls and display cases as well as for sliding doors (manualy or automaticaly operated), double-acting and smoke hermetic doors. Ponzio PT50 system allows using of variety of fillings: glass, aluminium panels, „sandwich” fillings, panel boards and PVC with width 1 – 40 mm. The structural section depth for frame and sash is 52 – 60 mm. Ponzio PT50 is either regular doors or the coplanar with notch hinge. The advantage of axial clamped hinges is facility of montage and regulation in three planes.