Peter: Unfortunately, yes, but a good alternative is gradually growing with Haas in germany. We're currently negotiating our first order with Haas and then we'll see how good the quality is, but I'm quite confident because both Haas and Nivarox use the same material. Aletta: Haas supplies all types of hairsprings, either with the blanks alone or with hairsprings that have collets, have been counted and have received their terminal curvature Ð whatever we need and would like. No Fields Found.