| http://www.w3.org/ns/prov#value | - The invention relates to a process and device for bending elongated articles such as in particular pipes and aims at providing a process and device by means of which the material thickness change of the cross-section of the bend can becontrolled.Upon bending pipes to bends a thinning of the wall at the outer part of the bend and a thickening of the wall at the inner portion of the bend takes place
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