handling operation line with gantry crane
girder erection crane with climbing capability
gantry crane with slewing man-trolley
gantry crane with shuttle girder
gantry crane with rope-trolley
gantry crane with man-trolley
gantry crane with level luffing crane
gantry crane with jib crane
gantry crane assembled with universal members
crane with gate shaped lifting hook
crane with double lever jib
crane boom trussed pole