Processed oil that has been purified or cleaned through re-refining.

पुनः शुद्ध किया गया तेल

English Usage: The factory specializes in the production of re-refined oil from used motor oils.

Hindi Usage: कारखाना पुराने इंजन के तेल से पुनः शुद्ध किया गया तेल उत्पादन में विशेषज्ञता रखता है।