Iron Wall Built By Zul-Qurnain

I was looking at the way the Wall was build and thought about the method:

First they laid the blocks of IRON between the mountain pass… secondly they heated the steel until it was red to form so that Zul-Qarnain could pour Molten Lead over the wall… ever wondered why?

Well check this site and you will read about a process called Austempering that is the best way ever to strengthen Steel surfaces… it’s a whole process, many articles on the Web… but again if people had taken heed of this process that was used by Zul-Qarnain, they would have figured out this method long before it was apparently discovered in 1932! – The West has a way of just knocking inventions and making claims to discover stuff they weren’t the first to discover…
http://www.appliedprocess.com/austempering/default.htm