Building technology/ building services (building automation)Cable layingCommunication technologyData network worksElectrical installationIndustrial construction and hall buildingLighting systemsLightning protectionPhotovoltaicsPlant engineeringRenewable energiesSafety technologySolar panels
Asphalt worksCanal constructionConcrete worksEarthworksIndustrial construction and hall buildingPaving worksRemediation worksRoad constructionUnderground construction