| Class | Class Name |
|---|---|
| 6 | metal cable trays |
| 6 | metal cables (non-electric) |
| 6 | metal cages for wild animals |
| 6 | metal cane fittings |
| 6 | metal cases for storing articles and/or materials |
| 6 | metal castings |
| 6 | metal ceiling boards |
| 6 | metal ceiling tiles |
| 6 | metal ceilings |
| 6 | metal chains |
| 6 | metal chains and anchoring articles for animals |
| 6 | metal chains and anchoring devices for animals |
| 6 | metal channels |
| 6 | metal cleats (other than for nautical use) |
| 6 | metal clips |
| 6 | metal coils |
| 6 | metal collecting boxes |
| 6 | metal compost bins |
| 6 | metal connection cable (non-electric) |
| 6 | metal connectors for pipes |
| 6 | metal construction materials |
| 6 | metal container closures |
| 6 | metal containers |
| 6 | metal containers for compressed gas or liquid air |
| 6 | metal containers for storage of audiotapes |
| 6 | metal containers for storage of blueprints |
| 6 | metal containers for storage of computer disks |
| 6 | metal containers for storage of computer software |
| 6 | metal containers for storage of computer tapes |
| 6 | metal containers for storage of films |
| 6 | metal containers for storage of master recordings |
| 6 | metal containers for storage of medical records and X-ray films |
| 6 | metal containers for storage of microfiches |
| 6 | metal containers for storage of microfilms |
| 6 | metal containers for storage of optical disks |
| 6 | metal containers for storing articles and/or materials |
| 6 | metal couplers |
| 6 | metal coupling and joints |
| 6 | metal cylinders for compressed gas |
| 6 | metal decorative boxes |
| 6 | metal die casting |
| 6 | metal display stands |
| 6 | metal display units and metal racks for merchandising products |
| 6 | metal door fittings |
| 6 | metal door frames |
| 6 | metal door handles |
| 6 | metal door knobs |
| 6 | metal door knockers |
| 6 | metal door locks |
| 6 | metal doors |
