411 Basic iron & steel
412 Rolled, drawn & folded products of iron & steel
413 Basic precious metals, metals clad with precious metals
414 Copper, nickel, aluminium, alumina, lead, zinc, tin (unwrought)
415 Semi-finished products of copper, nickel, aluminium, lead, zinc, tin (or their alloys)
416 Other non-ferrous metals n.e.c. & articles thereof (including waste and scrap); ceramic/metal items (cermets); ash & residue containing metals or metallic compounds n.e.c.