Why are Dytron TMT Bars preferred over other bars? A Why are Dytron TMT Bars preferred over other bars? Dytron TMT Bars produce using the clean steel billets with highly controlled steel chemistry with a deficient level of sulphur and phosphorus. The manufacturing process of TMT bars has to pass through strict quality control norms in the production unit that confirms the standard quality in Dytron TMT Bars. Permalink Back to Top