| 摘要 |
The invention relates to a device enabling barriers, boundary markers and nets to be installed more easily and more rapidly. It consists of vertical ducts 1 repeated all along the products in order to enable posts 3 to be fixed. The ducts produced according to various methods can be open at both ends so that the barriers, boundary markers and nets slide along the posts 3, or closed at their upper end so that the barriers, boundary markers and nets rest on the posts 3. The device according to the invention is particularly intended for barriers, boundary markers and nets for equipment for sporting activities, horticulture, public works etc. <IMAGE>
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