| Class | Class Name |
|---|---|
| 6 | bypass manifolds and clamps, all made from common metal |
| 6 | cabanas of metal |
| 6 | cabinet corner protectors of metal |
| 6 | cabinet handles of metal |
| 6 | cabinet hinges of metal |
| 6 | cabinet knobs of metal |
| 6 | cabinet latches of metal |
| 6 | cabinet locks cylinders of metal |
| 6 | cabinet locks of metal |
| 6 | cabinets made of metal and not being furniture |
| 6 | cabinets of metal |
| 6 | cable bridge frame |
| 6 | cable grip of metal |
| 6 | cable joints of metal, non-electric |
| 6 | cable linkages of metal, non-electric |
| 6 | cable trays of metal |
| 6 | cable trays of metal [other than electric] |
| 6 | cable trunking of metal [other than electric] |
| 6 | cables and pipes of metal |
| 6 | cables and wires of common metal alloys |
| 6 | cables of metal |
| 6 | cables of metal, non-electric |
| 6 | cadmium |
| 6 | cage structures and multi-compartmental cage structures of metal for forming bastions and gabions |
| 6 | canopies of metal |
| 6 | cap nuts of metal |
| 6 | cap screws of metal |
| 6 | carabiners of metal |
| 6 | carbon steel |
| 6 | casement windows of metal |
| 6 | cases, chests and boxes of metal |
| 6 | cases made of metal and not being furniture |
| 6 | cashboxes [metal or non-metal] |
| 6 | casings of metal for oilwells |
| 6 | cask stands of metal |
| 6 | casks of metal |
| 6 | cast iron |
| 6 | cast iron check valves |
| 6 | cast iron gate valves |
| 6 | cast iron globe valves |
| 6 | cast iron pipe fittings and stainless steel couplings |
| 6 | cast iron pipes |
| 6 | cast iron stop valves |
| 6 | cast iron, unwrought or semi-wrought |
| 6 | cast stainless steel pipe fittings |
| 6 | cast steel |
| 6 | casting moulds of metal for badges |
| 6 | castings and forgings for steelwork |
| 6 | cattle chains |
| 6 | ceiling and cladding made wholly or principally of common metal for buildings |