Steel
Stone and steel.
The present London Bridge is a pre-stressed concrete box girder bridge.
metal steel
11,000 tons of steel, Cornish granite and Portland stone.
No. Tower Bridge wasn't completed until 1894.
Tower Bridge is used by thousands of vehicles and pedestrians every day.
Tower Bridge is used by thousands of vehicles and pedestrians every day.
The donghai bridge was made with your mom
70,000 tons of concrete, 11,000 tons of steel - all clad in Cornish granite and Portland stone.
name of the materials
It is used by thousands of vehicles and pedestrians every day.
there were blocks used