a box girder with construction defects
box girder with corrugated steel web
box girder with trapezoidal section
box girder with variable cross section
box girder with varying width
Bridge Girder Erection Equipment
Bridge Girder Erection Machine
cast-in-site box girder with large span
Composite Box Girder with Corrugated Steel Webs
Composite Girder with Steel
continuous box girder with one box double cells
Continuous Girder with Variable section
continuous girder with varying section
continuous rigid girder with flexible arch
design and construction of crane girder
east-in-place continuous RC crane girder
excavation of rock-bolted crane girder