Assertion: bridge's girder | /r/HasProperty | enclosed tube
Facets:
value: with multiple walls
type: OTHER
Source sentences:
text: A box (or tubular) girder is an enclosed tube with multiple walls usually made from rolled or welded steel, aluminum extrusions, or prestressed concrete.
text: (or tubular) girder is an enclosed tube with multiple walls usually made from rolled or welded steel, aluminum extrusions, or prestressed concrete.