Engineering services for the performance image of outdoor installations
(Service phases 6-9) according to § 39 i. V. m. Annex 11.1 HOAI for the construction project at the Hausacker
Engineering services for the performance image of outdoor installations
(Service phases 6-9) according to § 39 i. V. m. Annex 11.1 HOAI for the construction project at the Hausacker