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Nabla fastening system

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The Nabla fastening system is widely used in France and Africa railways.  It is compliant with EN13481-5 standard.

The Nabla fastening system consists the following items:

Nabla blade: The Nabla blade is made up of alloy spring steel according to NF F50-015 standard

Insulator: This insulator is specially designed for the Nabla blade, we also call it support pad

High strength bolt with nut and washer



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