MB-45 is a modern aluminum system intended to create elements  of architectural interior and exterior that are not demanding as regards thermal insulation, for example .: various types of partition walls, windows, doors, including manual and automatic sliding doors, swing doors, vestibules, cash register boxes, display cases, spatial structures.

An essential advantage of the MB-45 system is the possibility to bend profiles, such as frames, casements and lacings. It allows creating various types of arches and arch structures.

The tightness is assured thanks to application of special gaskets made of EPDM synthetic rubber, which guarantees aging resistance during long-term operation.

A characteristic feature of the system is its close relation to the window and door MB-60 and MB-70. The versatility and attractiveness of the system further enhances the opportunity to choose between several variants of solutions for different constructional details, eg. Bottom sealing of doors, sealing sliding and swing doors, shape of glazing beads, shape and height of the door threshold.

The MB-45 is also the basis for special solutions: partitions and smoke doors MB-45D (class S30) and the so-called “Rebate door” MB-45S.

The structural depth of the window sections is 45 mm (frame), 54 mm (sash), and for doors: 45 mm and 45 mm. Such assumed depths of casement and frame sections give the effect of one surface from the outside after closing – in the case of the window, and the facing effect to the surfaces of casement and frame – in the case of doors. The shape of the profiles allows achieving slender and resistant window and door structures.

The system allows using the glazing of thickness of 2 mm to 35 mm in a window, and from 2 mm to 26 mm in fixed windows and door sashes.