Die Bahn
Suppliers rating Q1-Lieferant (L1-supplier) for Carbon brushes and Carbon Current Collectors (Mai 2010 bis April 2011), German)
České dráhy, a.s. Tschechische Bahn a.g.
Certificate of quality of Pan Trac Carbon Current Collectors for rail vehicles (June 2007 - December 2008, German)
Deutsche Gesellschaft zur Zertifizierung von Managementsystemen (DQS Group)
Certificate of our Quality and Environmental Management System according to DIN EN ISO 9001:2008 and EN ISO 14001:2004
Certificate of our Occupational Health and Safety Management System according to BS OHSAS 18001:2007