求翻译：本厂主要生产各种规格的电动双梁桥式起重机、电动单梁起重机、龙门吊、皮带输送机、电动平车等起重运输机械。是什么意思？

The factory mainly produces all kinds of electric double girder overhead cranes, electric single-girder crane, gantry crane, belt conveyor, electric flat car and other material handling equipment.

Our factory mainly produce all kinds of sizes of electric double-beam bridge cranes, electric cranes, single beam portal Crane, belt conveyor, power train wagons, and lifting machinery.

正在翻译，请等待...

Our factory mainly produces all kinds of electric double girder bridge crane, electric single girder gantry crane, gantry crane, belt conveyors, electrical hoisting and conveying machinery such as flat cars.

This factory mainly produces each kind of specification the electrically operated double beam bridge type hoist crane, electrically operated Shan the Liang hoist crane, the gantry crane, the leather belt conveyer, the electrically operated flatcar and so on lifts heavy objects the transport machiner