2514 Slate, Whether or not Roughly Trimmed or Merely Cut, by Sawing or Otherwise, Into Blocks or Slabs of a Square or Rectangular Shape, Slate Powder and Slate Refuse

2514 (01/1988-..) Slate, Whether or not Roughly Trimmed or Merely Cut, by Sawing or Otherwise, Into Blocks or Slabs of a Square or Rectangular Shape, Slate Powder and Slate Refuse 25140000 (01/1988-..) Slate, Whether or not Roughly Trimmed or Merely Cut, by Sawing or Otherwise, Into Blocks or Slabs of a Square or Rectangular Shape, Slate Powder and Slate Refuse