Catalogs / Brochures Here you can download our current spring catalog and other brochures in PDF format. Gutekunst Price list (pdf) Gutekunst Federnkatalog german language Gutekunst spring catalogue english language FERROFLEX / Gutekunst Catalogue de Ressorts en français Informations broschure „Das Federn 1x1“ german language Information broschure „Das Federn 1x1“ englisch language Brochure „Always the right spring“ Contact details Monday - Thursday: 8–12 hrs and 12.30-16.30 hrs Friday: 8-12 hrs and 12.30-15.30 hrs Telephone: (+49) 07123 960-0 or (+49) 07123 960-192 Telefax: (+49) 07123 960-195 eMail: service@gutekunst-co.com Interesting links Spring catalog Special springs Technical advice Spring design Metal spring calculation to DIN 13906 Springs forum videos