Para rubber vs natural rubber

Para rubber and natural rubber both are nouns.

Word	Noun	Adjective	Verb	Adverb
Para rubber	Yes	No	No	No
natural rubber	Yes	No	No	No

As nouns, natural rubber is a hypernym of Para rubber; that is, natural rubber is a word with a broader meaning than Para rubber:

Para rubber: a type of natural rubber obtained from tropical South American trees
natural rubber: an elastic material obtained from the latex sap of trees (especially trees of the genera Hevea and Ficus) that can be vulcanized and finished into a variety of products

Other hypernyms of Para rubber include caoutchouc, gum elastic, India rubber, rubber.

Para rubber (noun)	natural rubber (noun)
a type of natural rubber obtained from tropical South American trees	an elastic material obtained from the latex sap of trees (especially trees of the genera Hevea and Ficus) that can be vulcanized and finished into a variety of products