吊鉤雙梁工程門式起重機適用于公路、橋梁、電廠等建設工場進行一般的裝卸及起重搬運作業(yè)。
　　本起重機由橋架、大車運行機構、小車、電氣設備等組成。全部機構均在操縱室內操縱。起重機導電形式分電纜和滑觸線兩種，訂貨時任選一種。
　　The utility model relates to a double beam gantry crane with a hook, which is suitable for the general loading and unloading and lifting operations of the workshops, such as roads, bridges, power plants, etc..
　　The crane is composed of a bridge, a cart running mechanism, a trolley and an electric device. All agencies operate in the control room. Two types of electric cables are divided into two types: cable and slide line.