写真素材 - The bottom view of an overpass bridge in Osaka, shows a girder made of high tensile steel in green and gray with a box shape with a wing on it and bolted connection. There are also columns made of concrete and steel.
The bottom view of an overpass bridge in Osaka, shows a girder made of high tensile steel in green and gray with a box shape with a wing on it and bolted connection. There are also columns made of concrete and steel.