How It's Made - Train Rails

That's a little different from the rolling mills that we use in camp.

I'm impressed with the various, specific temperatures and rates of cooling/heating mentioned in this video - poured, cooled, then reheated for 5-7 hours to 1250C...cooled to 500C...held for 10 hours to cool to 90C. Whoever came up with that exact order and rate was brilliant.

1:00 - down a ceramic tube...'cause ceramics have higher melting points doncha know?
2:30 - those inspectors look to have a rough job, eh?