1 / 6 Quality can be planned better than ever 5 Online measurement of the surface roughness of steel strip 'A belt and braces quality check', this would be a good description of the quality assurance system at voestalpine Stahl GmbH in Linz. In addition to the conventional method of measur- ing the surface roughness of steel strip using a stylus, the Austrian company also uses a new 10 device, which allows on-line measurement with

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