metalwork vs metalworking

metalwork and metalworking both are nouns.

Word	Noun	Adjective	Verb	Adverb
metalwork	Yes	No	No	No
metalworking	Yes	No	No	No

As nouns, metalwork and metalworking are synonyms defined as:

metalwork and metalworking: the activity of making things out of metal in a skillful manner

metalwork (noun)	metalworking (noun)
the activity of making things out of metal in a skillful manner	the activity of making things out of metal in a skillful manner
the metal parts of something