Materials

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Across
  1. 2. used in chairs tables doors, it begins with W
  2. 4. used in clothes, it begins with N
  3. 5. used in roofs, planes, it begins with F
  4. 6. used in floors, it begins with C
  5. 8. used in windows, it begins with G
Down
  1. 1. used in construction, it begins with C
  2. 3. used in toys, it begins with P
  3. 7. used in engineering, it begins with M