In order to ensure the quality of our production, our own TÜV-approved quality management team is always at site and monitors every process step. The production sites themselves are also TÜV-approved and include a test laboratory with all TÜV-relevant test machines and a variety of analyzing and control stations like for example X-ray, density and imbalance inspection. Nearly every of our rims have the German General Operating Licence called ABE and selected models additionally have ECE approvals.