The subject of the overall construction project is the renovation of the Witten vocational college. In the present case, in this context, the steel and metal construction work (locksmith work) as part of the fire protection renovation of the Witten vocational college is awarded in one lot.

steel and metal construction work (locksmith work); especially:

- South stairwell, external (steel structure, façade, lattice racks, railings),

- lattice racks (casemates, manhole covers),

- railings (basement stairs),

- Technical processing and statics,

- Ausführungszeichnungen.