HOCHTIEF / Group Contakt
HOCHTIEF / Career Contact
... through the mountain Jürgen Mielenz experiences some of the most exciting and intense moments of his working life.
Green roofs, the sun or geothermal heat as energy sources, and ventilation systems combined with ecological materials.
What is it?How does it work?What are the advantages?
Portfolio index / Segment index
Half-year Report online reader
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