We are a reliable partner for our customers. We also expect the same philosophy from our suppliers. We attach great importance to top quality with regard to materials, efficient processes, and mutual respect. On this basis, we seek to maintain long-term partnerships with our suppliers in a spirit of mutual trust.
We regularly check process- and quality-relevant factors relating to our suppliers using a scoring system. We use this system to classify and select our suppliers. Criteria include quality, delivery reliability and certifications (at least DIN EN ISO 9001, preferably ISO/TS 16949). You can find out more about this process in the documents available on the right for downloading.