NF E78-001

Handtool - Ballast or pebble pitch forks (9 teeth)

Le présent document spécifie les caractéristiques techniques des fourches à ballast ou à cailloux de 9 dents, à emmanchement à douille, à longue douille ou à soie. Il fixe les essais de flexion transversale et de flexion verticale auxquels les dents doivent résister. Enfin il spécifie la désignation et le marquage.

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