blow molding machine vs plastic blow molding machine

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

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

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

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

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

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