QD型吊鉤橋式起重機主要由橋架、大車(chē)運行機構、小車(chē)、電器設備等幾個(gè)主要部件組成。根據使用頻繁成度的不同，分為A5、A6兩個(gè)工作級別。該起重機動(dòng)作操縱全部在司機室內完成?！?br /> 　　QD Model Hnger Bridge Crane maicly consists of bridge, trolley mechanism,crab and electrical appliances,and is divided into 2 working grades of A5  and A6  according to the use frequency.This crane operation is completed in drivers chamber.