| http://www.w3.org/ns/prov#value | - A process for providing a free end of a deformable rigid pipe with a connecting section having a desired contour adapted to mate with a connecting section of another pipe, said connecting section including an individual unobstructed external outwardly projecting circumferential reinforced bead spaced from the free end of said pipe, said process comprising the steps of:positioning at said free end
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