plastic blow moulding machine vs plastic blow molding machine

plastic blow moulding machine and plastic blow molding machine both are nouns.

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

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

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

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

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