>>7808929 . PB
>Why is STEEL so important?
https://sail.co.in/learning-center/importance-steel
even old steel is invaluable for certain purposes:
https://www.straitstimes.com/asia/se-asia/malaysia-firms-plunder-sunken-wrecks-for-rare-steel-used-to-make-sensitive-medical
The old steel of underwater WW2 wrecks is uncontaminated by the traces of radioactivity that now contaminates any new steel that is manufactured
Entire ships and submarines have disappeared from designated war graves in oceans around Asia
https://www.theguardian.com/world/ng-interactive/2017/nov/03/worlds-biggest-grave-robbery-asias-disappearing-ww2-shipwrecks
https://www.theguardian.com/world/2017/feb/09/images-reveal-three-more-japanese-wwii-shipwrecks-torn-apart-for-scrap