| Chapter Code | Chapter Description |
|---|
| 85408900 | OTHER VALVES AND TUBES : OTHER |
| 85408100 | OTHER VALVES AND TUBES : RECEIVER OR AMPLIFIER VALVES AND TUBES |
| 85407900 | MICROWAVE TUBES (FOR EXAMPLE, MAGNETRONS, KLYSTRONS, TRAVELLING WAVE TUBES, CARCINOTRONS), EXCLUDING GRID-CONTROLLED TUBES : OTHER |
| 85407100 | MICROWAVE TUBES (FOR EXAMPLE, MAGNETRONS, KLYSTRONS, TRAVELLING WAVE TUBES, CARCINOTRONS), EXCLUDING GRID-CONTROLLED TUBES : MAGNETRONS |
| 85409100 | PARTS : OF CATHODE-RAY TUBES |
| 85407900 | MICROWAVE TUBES (FOR EXAMPLE, MAGNETRONS, KLYSTRONS, TRAVELLING WAVE TUBES, CARCINOTRONS), EXCLUDING GRID-CONTROLLED TUBES : OTHER |
| 85408900 | OTHER VALVES AND TUBES : OTHER |
| 85408100 | OTHER VALVES AND TUBES : RECEIVER OR AMPLIFIER VALVES AND TUBES |