DIN 2393-2 Grade St 44-2 bright drawn Tubes are essentially black steel tube that has had further processing. It is processed further in cold reduction mills, where the material is cooled at room temperature followed by annealing or tempers rolling. This process will produce closer dimensional tolerances and a wider range of surface finishes. DIN 2393 Welded Precision Steel Tubes is used for hydraulic system steel tube, auto and motorcycle shock absorber, electric industry, construction machinery, gas spring, heat exchanger and condenser.
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