Boilermaking jobs

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Across
  1. 3. atomic energy
  2. 5. military entity
  3. 6. the one who repairs the bodywork
  4. 7. related to food production
  5. 9. building construction
  6. 10. relating to navigation
Down
  1. 1. air conditioning technician
  2. 2. on water
  3. 4. engineer oil skilled worker
  4. 8. connected to air devices, space