6 Unwrought and/or semi-wrought iron and steel; metallic building materials; non-ferrous metals and their alloys; high purity electrolytic iron; aluminium and its alloys.
9 Welding electrodes; physical or chemical apparatus and instruments; liquid chromatography columns, refractive index detectors, organic acid analysers, ion chromatographs; electronic instruments and their parts and fittings, hard discs, wafers, computer chips; semi-conductors, semi-conductor devices; computer substrates; electrical and electronic apparatus and instruments.
17 Plastics; semi-finished plastic products; plastics in extruded form for use in manufacturing; semi-processed plastic substances; chlorinated polyethylene sheets and boards; chlorinated tubes; chlorinated rods; chlorinated bands; polyamide sheets and boards; polyamide tubes; polyamide rods; polyamide bands; plastic sheets and boards; plastic bands; plastic tubes; plastic rods.