Services for cleaning, inspection and leak testing of sewers in the association area of the Zweckverband Wasserversorgung und Abwasserentsorgung Ostharz (ZVO)
1 service unit - Framework agreement for the services of cleaning, inspection and leak testing of sewers in the association area of the Zweckverband Wasserversorgung und Abwasserentsorgung Ostharz (ZVO)