To obtain a duplicate of this declaration of conformity, simply send a request to the fax number 049 767321 or to the e-mail address tec@zilmet.it. The following data must be specified in the request, reported on the identification label applied to the expansion tank: product family (for example CAL-PRO), drawing number, maximum operating pressure, production date, factory number, capacity of the expansion vessel and pre-charge pressure value. Since the duplicate of the declaration of conformity is sent by post, it is necessary to accompany the request with the following information: complete address to which the documentation should be sent, name of the contact person and complete company name.