fifth wheel lead

长度计算用牵引座前置距 fifth wheel lead 牵引座前置距? fifth wheel lead 长度计算用牵引座前置距?

 distance of towing attachment

牵引座前置距：distance of towing attachment 牵引座结合面高度：fith wheel lead for calculation of mass distribution 牵引装置至车辆前端的距离：height of coupling face...