A wear-resistant bushing is sheathed on a tail end sleeve end tube, and a flange of the bushing is pressed between the tail wing plate and the tail end sleeve tube.
尾端套管上穿套一个耐磨轴衬，轴衬凸缘被压在尾翼板和尾端套管之间。
A wear-resistant bushing is sheathed on a tail end sleeve end tube, and a flange of the bushing is pressed between the tail wing plate and the tail end sleeve tube.
尾端套管上穿套一个耐磨轴衬，轴衬凸缘被压在尾翼板和尾端套管之间。
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