转向的构造原理。除其他外，还有转向架式转向系统和车轴枢轴转向系统。在三轮建筑叉车中，使用了转向架式转向系统的优势，四轮建筑叉车中使用了轴枢转转向原理。

        Construction principle of the steering. Among others there are bogie-type steering systems and axle pivot steering systems. In three-wheel construction forklift trucks the advantages of the bogie-type steering system are used, four-wheel construction fork lift trucks the axle pivot steering principle is used.