… Tantalum and articles thereof, including waste and scrap. …
Explanatory notes
… is black. In other forms it is white when polished and steel blue when unpolished. It is very malleable and ductile … and (as ferro‑tantalum, see Chapter 72) in preparing alloy steels. It is also used to make grids and anodes for … blocks, waste and scrap; bars, wire, filaments; sheets, strip, foil; profiles; tubes and other manufactures (e.g., …