| 摘要 |
The subject of the invention relates to a first certificate of addition to the French Patent no. 84 02185 dated 10 February 1984 for an assembling and fastening device for external covering panels. It consists in creating, on the external face of the shaped element, a concave surface forming an edge with spacer ribs 5 supporting a reinforcement sheet 10, whilst the periphery comprises a protruding edge 8 being more or less twice the height of the ribs, so as to form a double reinforced layer of precoating. It is intended for lining walls for their thermal and acoustic insulation and, more particularly, for allowing the bonding of the finishing rendering. <IMAGE>
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