Building materials

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Across
  1. 1. brick
  2. 3. cement
  3. 6. wallpaper
  4. 9. steel
  5. 10. plaster
  6. 12. stone
  7. 13. wood
  8. 14. marble
  9. 15. parquet
  10. 16. vinyl
Down
  1. 2. concrete
  2. 4. clay
  3. 5. floorboard
  4. 7. gravel
  5. 8. tile
  6. 11. glass
  7. 12. slate
  8. 15. plank