… cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape. …
Explanatory notes
… cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape. Slate, which splits … (e.g., with a wire strand), into blocks or slabs of a rectangular (including square) shape. Slate powder and waste … and damp course slates, even if shaped or processed as specified in the text of this heading. (c) Articles of …