| 摘要 |
Device for installing, and removing rapidly, flexible surfaces such as plastic film, tarpaulin, canvas shades, nets for protection against hail, wind, insects, birds. It consists of two metal sections (4 and 4') connected together by a screw, and of a semi-rigid section (6) allowing the flexible surface (7) to be held between the hooked corners (5 and 5'). The device according to the invention is particularly intended for the installation of a plastic film (covering greenhouses). <IMAGE>
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