2518 Dolomite, Whether or not Calcined or Sintered, Incl. Dolomite Roughly Trimmed or Merely Cut, by Sawing or Otherwise, Into Blocks or Slabs of a Rectangular `incl. Square` Shape, and Dolomite Ramming mix (Excl. Broken or Crushed Dolomite for Concrete AggreGates, Road Metalling or Railway or Other Ballast)

2518 (01/1988-..) Dolomite, Whether or not Calcined or Sintered, Incl. Dolomite Roughly Trimmed or Merely Cut, by Sawing or Otherwise, Into Blocks or Slabs of a Rectangular `incl. Square` Shape, and Dolomite Ramming mix (Excl. Broken or Crushed Dolomite for Concrete AggreGates, Road Metalling or Railway or Other Ballast) 25181000 (01/1988-..) Crude Dolomite, not Calcined or not Sintered, Incl. Dolomite Roughly Trimmed or Merely Cut, by Sawing or Otherwise, Into Blocks or Slabs of a Rectangular `incl. Square` Shape (Excl. Broken or Crushed Dolomite for Concrete Aggregates, Road Metalling or RaIlway or Other Ballast) 25182000 (01/1988-..) Calcined or Sintered Dolomite (Excl. Broken or Crushed Dolomite for Concrete Aggregates, Road Metalling or Railway or Other Ballast) 25183000 (01/1988-..) Dolomite Ramming Mix