| 摘要 |
Device characterised in that it constitutes a shuttering element 1 in the form of a profile whose cross-section is of a general U-shape, the base of this U consisting of spaced crosspieces 2 connecting the two arms 3 and 4 of this U, one arm 3 being perpendicular to the crosspieces and the other arm 4 being inclined and having an outer face 41 which is moulded. <IMAGE>
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