Subheading 440611: Wood; Railway or Tramway Sleepers (Cross-ties), not Impregnated, C … etc.
Subheading 440612: Wood; Railway or Tramway Sleepers (Cross-ties), not Impregnated, N … etc.
Subheading 440691: Wood; Railway or Tramway Sleepers (Cross-ties), Impregnated, Conif … etc.
Subheading 440692: Wood; Railway or Tramway Sleepers (Cross-ties), Impregnated, Non-c … etc.