上海雙雕起重機械有限公司設計制造的移動式龍門架/龍門吊系列產品具有結構簡單，safe可靠，操作方便，轉動靈活，作業空間大，投資成本低，適用于設備的安裝調試、模具的裝卸與維修、倉庫貨物的裝卸車等吊運場合。比其他常規性的吊運設備更顯示其優越性。

Shanghai Shuangdiao Hoisting Machinery Co., Ltd. designs and manufactures of mobile gantry crane series products with simple structure, safe and reliable performance, convenient operation, flexible rotation, large working space, low investment costs and are applicable to equipment installation and debugging of equipment, mold handing and maintenance, warehouse cargo loading and unloading vehicles and other lifting occasions. Compared with other conventional lifting equipment shows its superiority.