Subheading 271410: Bituminous or Oil Shale and Tar Sands
Subheading 271490: Bitumen and Asphalt, Natural; Asphaltites and Asphaltic Rock
Subheading 271410: Bituminous or Oil Shale and Tar Sands
Subheading 271490: Bitumen and Asphalt, Natural; Asphaltites and Asphaltic Rock