You put in metal, which is impossible to do anything with.
In the metal, the Wind comes across as too tall.
Scratched in the metal of the box was the number 1023.
He ran it along the join in the metal - then stopped.
It has thousands of letters and other things written in the metal.
Looks as if it was made by a sharp edge of something in metal.
"At this range, we would be able to see the pattern in the metal on the side of any ship."
Perhaps the extra energy required by the darkness he had put in the metal?
I saw our reflection in the metal of the machine.
He hung over the small circle of light in the dark metal.