| 摘要 |
A movable subframe or slider (70) for a semi-trailer (40) is modified to provide a storage bay between the slider (70) and the semi-trailer (40) for accommodating a walk ramp (20) and its carrier hardware has a spacer cap (71 ) mounted on the uppermost surface of each main member (11) and associated cro ss members (16) of the slider (70).
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