a box girder with construction defects
box girder with corrugated steel web
Box Girder with Corrugated Steel Webs
box girder with hollow abdomen
box girder with trapezoidal section
box girder with variable cross section
box girder with varying depths
box girder with varying width
box-girder with bluff body
Bridge Girder Erection Equipment
Bridge Girder Erection Machine
Bridge-girder Erection Machine
cast-in-site box girder with large span
Composite Box Girder with Corrugated Steel Web
Composite Box Girder with Corrugated Steel Webs
Composite Box-girder with Corrugated Steel Webs