| http://www.w3.org/ns/prov#value | - Publication FR-A-2 704 166 describes an installation as defined in the preamble of claim 1, and in which the rotary support is mounted on a plate which is directly fixed on the tube, however that solution is inappropriate when the tube is subjected to motion and vibration while the work is taking place, which applies in particular to tubes making up a pipeline that is being laid at sea from a barg
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