| 摘要 |
A mower sickle bar has an elongated metal bar having a longitudinally extending edge region that is tempered and thereadjacent a longitudinally extending middle region that is not tempered. The untempered middle region is formed with a row of throughgoing holes. A longitudinally extending row of blades lying on the metal bar at least partially over the untempered middle region thereof is secured thereto by fasteners projecting through the holes and through the blades.
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