Suplayer crane double girder
Over head Crane double girder is one of heavy equipment which applicated in the building and outside the building with his own construction, used for industrial and other applications which adjust the ugliness of the wearer, to foster the capacity ranging from small to large that can use a model like this. A special feature of the model double girder which machine or hoist are above the beam girder to its place moving, this usage is usually to further maximize tingg