Air conditioningBuilding technology/ building services (building automation)Electrical installationHeatingPipeline constructionPlant engineeringRefrigerationSanitaryVentilation
Canal constructionCivil engineeringConcrete worksIndustrial construction and hall buildingOutdoor facilitiesPipeline constructionPrecast concreteReinforced concrete worksRoad constructionStructural engineeringUnderground construction