A wagon made of metal.
Engrave
oxidation
Blacksmith
Ferrous metal!
metal
a metalloid
Paracoccidioidomicosisproctitissarcomucosis, a Mexican goregrind band, but only if you consider that form of music as metal (personally I don't think it's 'real metal' but that's another debate for another time).
You might be thinking of 'quicksilver'.
A small earthen ware or metal cooking pot!
Dog tags.
Group 1 Metals