etwas infos vom Googeln:
Rocky Mountain Parabolic Suspension Systems can transform the ride of your off road vehicle. We also supply gas shock absorbers and other suspension components. Our Parabolic suspension systems are recognized as being the finest product of their type and are sold all over the world.
Parabolic starting at : $590 CDN / $475 USD
is von hier:
www.wiseowlparts.com/images/parabolic-springs.jpg
mal wegen preisrichtung (aber achtung is für Landi!).
so siehts dann beim Landi aus:
http://www.4wdworld.com.au/products/lan ... 109-fr.jpg
http://www.4x4shop.lt/img/para0.jpg
hier noch infos zu der Firma Heystee:
http://www.heystee-automotive.com/
hier wird auch die TÜV Frage beantwortet:
ISO 9000 quality standard
All HST Parabolic springs are manufactured under ISO 9000 standards according the TÜV Quality Management System under certification. This German TÜV certificate describes how the production has to take place. It also describes how every stage of the production is monitored and checked for quality at all times. Also it provides the ability to trace every product ever made and sold. In this way I can supply you with the best Parabolic springs available.
HST is a TÜV certificated company. The suspension systems are TÜV approved.