Peb lub tuam txhab yog ib qho ntawm cov ua lag luam steell mill overhead crane zeb nyiaj siv ua haujlwm crane rau muag ntawm no los ntawm peb lub hoobkas.
A double leg gantry crane with torsion box girder construction in a steel facility is shown above. EMH Gantry Crane. Gantry Crane at Overseas Power Plant. A 130