Contact Sitemap imprint DW thresholds Companies Concepts Products Service & Solutions credentials environment DYWIDAG and WALTER BAU, the forerunners of DW thresholds, have been producing prestressed concrete sleepers in their three production plants for over 50 years and slab track systems for railroad construction for around 10 years. DW thresholds now have the highest level of competence and performance potential. welcome Decades of experience, decades of stability. Anyone who wants to reliably get millions of people and goods to their destination every day needs safe transport routes - today, tomorrow and the day after tomorrow. For this we manufacture prestressed concrete sleepers according to the strictest quality standards and the latest findings from concrete technology. With the highest quality materials and proven expertise as a Q1 supplier to Deutsche Bahn. The result is products that prove their longevity year after year. And so we create a stable basis for future-oriented mobility. Would you like to get to know our entire product range? I'm interested (Status: 1.12.13) © 2005-2013 DW threshold GmbH XHTML | CSS