2621 Slag and ash, incl. seaweed ash `kelp` (excl. slag, incl. granulated, from the manufacture of iron or steel and ashes and residues containing metals or metal compounds)

2621 (01/1988-12/2001) Slag and ash, incl. seaweed ash `kelp` (excl. slag, incl. granulated, from the manufacture of iron or steel and ashes and residues containing metals or metal compounds)