| 摘要 |
The placing of a profile section next to the edge 10b of the core 10 covered on one of its faces by a covering material 11, is achieved by means of injection through a perforated tube 14 integral with the postforming machine, in such a manner that the speed of injection of said profile section 18 is at all times identical to the speed of advance of the core 10, the transverse section of the profile section 18 coinciding, when the injected material has expanded, with the transverse section of the perforated tube 14. <IMAGE>
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