Iron+&+Steel

POST-READING:
“the old cast iron buildings died out. I'm not really sure whether the new skyscrapers killed them, or the new esthetics”

I think the steel was widely substituted for cast iron, because it brings a lot of adventages to the manufactures and especially to the modern architecture.

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CHAT LOG:


Conclusions:

Iron and steel continue to be vitally important to society. Steels are by far the most widely-used of metallic materials, worldwide the production continues to increase along with economic growth. Iron makes up a huge array of modern products: [|Cars], tractors, bridges, trains (and their rails), tools, skyscrapers, guns and ships all depend on iron and steel to make them strong.