Code 2511
NATURAL BARIUM SULPHATE (BARYTES); NATURAL BARIUM CARBONATE (WITHERITE), WHETHER OR NOT CALCINED, OTHER THAN BARIUM OXIDE OF HEADING 2816
NATURAL BARIUM SULPHATE (BARYTES); NATURAL BARIUM CARBONATE (WITHERITE), WHETHER OR NOT CALCINED, OTHER THAN BARIUM OXIDE OF HEADING 2816