Deutsche Bundesbank, temporary contract work in residential and office buildings of the head office in NRW, Stlb 638 roofing and roof sealing work, Stlb 639 plumbing work and Stlb 651 scaffolding work
Deutsche Bundesbank, Office buildings_residential complexes in the greater Düsseldorf area, temporary contract work, Stlb 680 Heating and central water heating systems, Stlb 681 Gas, water and drainage systems