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Use "unvulcanized" in a sentence
"From 1994 to 2007, the purchase price of unvulcanized rubber skyrocketed by 900 percent."
"The vulcanitation of rubber makes it more flexible and unvulcanized rubber is soluble in many hydrocarbons like benzene, toluene, gasoline, and lubricating oils."
"By joining CR4 you can "subscribe" to Re: import the unvulcanized rubber scraps"