Mech

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Across
  1. 2. summer
  2. 5. jewel
  3. 6. brinell
  4. 7. number
  5. 9. soda
  6. 11. chalk
  7. 12. pressure
  8. 14. crank
  9. 15. friction
Down
  1. 1. zinc
  2. 3. scale
  3. 4. high
  4. 8. rubber
  5. 10. structure
  6. 13. pressure
  7. 15. fuel