The border wall" between the US and Mexico. Mr Trump says his...

The border wall" between the US and Mexico.
Mr Trump says his wall will cover 1,000 miles and natural obstacles will take care of the rest.
A study by the Washington Post estimated the cost of the president's wall would be close to $25bn.
Some of this money will work its way into resources such as Iron.
Iron will surely be a core component of this wall, be it reinforcing bar in concrete or fencing Wire/Cladding & Piles.