blow moulding machine vs blow molding machine

blow moulding machine and blow molding machine both are nouns.

Word	Noun	Adjective	Verb	Adverb
blow moulding machine	Yes	No	No	No
blow molding machine	Yes	No	No	No

As nouns, blow moulding machine and blow molding machine are synonyms defined as:

blow moulding machine and blow molding machine: a machine that forms hollow plastic parts.

Other synonyms of blow moulding machine include plastic blow molding machine, plastic blow moulding machine.

blow moulding machine (noun)	blow molding machine (noun)
a machine that forms hollow plastic parts.	a machine that forms hollow plastic parts.