| 摘要 |
It comprises front couplings between every two contiguous trucks 1. It is characterized in that said front couplings comprise textile fibres 9, 10 arranged on flexible plates 8, 11, which, in a truck, have a form which complements that of the contiguous truck by means of a male/female-type connection. It prevents hollows or free spaces arising between contiguous trucks 1. <IMAGE>
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