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Kanalbau und -sanierung
Rehabilitation of the municipal drainage channels in Körperich 2022-2026
by Jonathan Wittmann
Karlshuld: New vacuum line laid at the access road to the fire station
by Jonathan Wittmann
Rehabilitation of the municipal drainage channels in Gevelsberg 2022-2023
by Jonathan Wittmann
Renewal of irrigation pipes in Herne
by Jonathan Wittmann
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