STAUFF supplies a range of precision hydraulic tubing in both metric and imperial sizes. The materials available are standard cold drawn, normalised, seamless (CDS) carbon steel, galvanised zinc plated, CDS carbon steel, and seamless annealed 316L stainless steel. Steel tube is cleaned, normalised, free of scale, has a passivated zinc plated exterior with an oiled interior and capped ends. Stainless steel tube is cold drawn seamless, heat treated to anneal, and supplied with capped ends. Tube is sold as 6 metre lengths.