The essential thing is to communicate the serial number and the operating conditions to check if they have not changed from the original.Subsequently, if you need official data and therefore with relative declaration, you will have to contact our paid certificates office by sending an email to the following address info@carrarovalvole.it
If, on the other hand, you need real data, but informal because it is not certified, you can ask our sales department for help: sales@carrarovalvole.it (or info@carrarovalvole.it) who will forward it to the office in charge. In this case you will not be asked for any costs, but remember that this is unofficial data because it is not drawn up on a declaration / certificate.