| 摘要 |
The buffer comprises a metal casing (2) in the form of a sector, comprising two flanges (2a) connected by a partition (2b) and an active face (2c). The casing (2) is made to rotate by a telescopic connecting rod (3, 4, 11), the heel (3d) of which constitutes a stop for the casing in the active position. <IMAGE>
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