Reversible steel-reinforced door

7) Steel-reinforced door of the type comprising a sheet metal framework (4), strengthened with a plurality of metal structural sections (5, 7), to which are fitted a lock (8) and bolts (9), said metal sheet (4) also acting as support for a plurality of mechanisms designed for the operation of said bolts, said steel-reinforced door being mounted on a frame (2) via hinges (6), and closing due to the effect of said bolts which engage with holes made in said frame, characterised in that it includes:

• a second metal sheet (10), connected to said sheet metal framework (4) so as to form, with said framework (4), a closed structure suitable to contain said lock (8) and said bolts (9, 9a), and said mechanisms designed to operate said bolts (9, 9a).
• connectors for a central bolt (8) fitted at the horizontal axis of symmetry (8b) of said door (1), thus allowing said door (1) to open to the right or the left, said bolts (9, 9a) being fitted symmetrically in relation to said axis of horizontal symmetry (8b) of said door (1);
• hinges (6, 6a, 6b) fitted symmetrically in relation to said axis of horizontal symmetry (8b) of said door (1);
• a pair of uprights (16), (17) of said frame (2), on both of which the strike plates of lock (8) are fitted and the holes required for the passage of said bolts (9, 9a) and the fitting of said hinges (6, 6a, 6b) are made.