Petrochemical crossword

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Across
  1. 3. A fossil fuel that is not liquid.
  2. 6. A material made from polymers.
  3. 7. A device to stop the flow.
  4. 8. A machine used to move fluids.
  5. 9. A flexible synthetic material.
  6. 10. A chemical with a ring shape.
  7. 11. Material burned to produce power.
  8. 13. To make a hole for oil.
  9. 15. What we get from burning oil.
  10. 16. The raw liquid found underground.
  11. 17. A substance used to make plastics.
  12. 19. A large container to store oil.
Down
  1. 1. Oil in its natural state.
  2. 2. (Word) Pista (Clue)
  3. 4. A solid made from petroleum.
  4. 5. A simple gas used in industry.
  5. 6. A long tube used to move liquids.
  6. 9. A factory where oil is processed.
  7. 12. A type of fuel for heavy trucks.
  8. 14. The main element in fossil fuels.
  9. 18. A liquid that dissolves substances.