Quality Management Quality is our absolute aim. To help us achieve the highest quality standards we work closely together with international research institutes, test centres and independent material testing laboratories. Our certified QM system – based on DIN EN ISO 14001:1996 and DIN EN ISO/TS 16949:2002- guarantees us reproducible quality levels. Thanks to our production expertise and the care we take during manufacture, we are able to ensure high quality standards and high product durability as well as guaranteeing that our products display the features promised to the customer.