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Use "refiner" in a sentence
"Chevron, California's largest native oil refiner, is officially neutral on Prop 23, but Grist argues it supports Prop 26 because it's a "polluters protection act.""
"The instruments required by the refiner were a crucible of furnace and a bellows or blow-pipe."
"This follows a deal in February to sell a 49 percent stake in Spanish refiner Cia."