Surface finish for steel is 3 µm (125 µ in), and is 0.8 µm (30 ... Metals and alloys can be extruded into round or oval tube shapes, hollow square tube shapes, channel shapes, Zee or Z shapes, Tee or ...
A new steel tube-making machine is taking shape at Tata Steel's Corby works as part of a site-wide £30m development programme. The tube mill replaces two older machines and has started to arrive ...