wood and usage

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Across
  1. 3. a type of hardwood
  2. 7. a usage of teak
  3. 8. a type of softwood
  4. 9. a usage of beech
  5. 10. a usage of ash
  6. 11. what color is mahogany
Down
  1. 1. a usage of oak
  2. 2. a usage of blockboard
  3. 4. a type of manufactured board
  4. 5. a usage of pitch pine
  5. 6. an advantage of using manufactured boards
  6. 7. a usage of mahogany