n.列车间的挂钩，牵引车的挂钩，拉杆
The Y - frame drawbar is constructed from two solid beams that can bear more loads.
牵引架为Y字型实心梁结构,能承受更大的负荷.
Put in the drawbar to the spindle shaft center hole.
将连接杆放在主轴中心孔.
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