Do you have any questions or remarks? We are very happy to answer all your requests.

Our contact information:

Sigma Quality Consultancy GmbH
Mr. Tjerk Dijkstra
Rütistrasse 14
8134 Adliswil
Switzerland

E-mail: info@sigmaqc.com
Tel:       +41 78 90 50 420
Fax:     +41 44 57 53 243

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