What is the fine-grained topic of the following text: The product declaration according to the new EN 18504 has now been issued for the latest product lines RHEINZINK-prePATINA®, -PROTECT® and -INTERIEUR® on the basis of current life cycle assessment data and was officially presented on 17 January 2013 at our stand at the BAU 2013 fair in Munich. Only return the topic.
Product Declaration for RHEINZINK Product Lines