| 摘要 |
It consists in the combination of firstly a plate 1 forming the support, parallelepipedal in shape and flat, with lateral walls with their edges turned down 4, 5, and then transverse walls 6 onto which joist fillers 7, 9 or flexible metal plates are fixed dressed over the shape of the bearing surfaces by lapping or insertion without edge joints. It is designed to allow rapid fixing and sealed assembly of all types of tiles or roofs. <IMAGE>
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