| 摘要 |
The coupling comprises an upper section (1) with a lug (2) for attaching a safety line or other equipment, and a fold at its other end forming a stop for a lower section which fits onto the supporting structure of the building or the roof covering. The upper section is of constant shape, while the lower one is shaped to engage with specific structures, and the assembly, which is made e.g. from galvanized steel, is fixed at four points with self-tapping stainless steel screws.
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