Strong zip fastener
The utility model relates to a strong zip fastener, which is composed of two single chains and a pull head; the top end of a sprocket is provided with a groove, the bottom part of the sprocket is accompanied with a raised head, and the relative raised head of the sprocket can be clamped in the groov...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The utility model relates to a strong zip fastener, which is composed of two single chains and a pull head; the top end of a sprocket is provided with a groove, the bottom part of the sprocket is accompanied with a raised head, and the relative raised head of the sprocket can be clamped in the groove; the strong zip fastener has easy opening and closing, little possibility of chain clamping, high strength, and long service life. |
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