How is the term "service" defined for steel moulds for the concrete block industry? What services does the customer expect? What measures should manufacturers take in order to offer comprehensive service? The design and development of new stone systems as service building blocks have already been defined and explained in the October issue of CPI Concrete Plant International. This article also makes reference to the service concept of Kobra Formen GmbH and illuminates further aspects of a comprehensive, customeroriented system – this time taking the example of the reconstruction of existing concrete block moulds to improve block quality.