… Slate, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a …
Explanatory notes
… 25.14 ‑ Slate, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a … covers slate in the mass or roughly trimmed or merely cut, by sawing or otherwise (e.g., with a wire strand), into …