General CertificatesContact usPhone: +49 4531 17 62 – 0General CertificatesInternational Welding Cetrificate>> Certificate DIN-EN-ISO-3834-2-til-15.05.28 Other certificates from Klaus Thormählen GmbH can be found on the german homepagewww.thormaehlen-gmbh.de/zertifikate
English 
Deutsch 
Kroatisch 