| 8473.21 | 000 | Of the electronic calculating machines of subheading 8470.10, 8470.21 or 8470.29 |
| 8473.29 | 000 | Other |
| 8473.30 | | Parts and accessories of the machines of heading 84.71 |
| 8473.30 | | - Of automatic data processing machines or of units thereof |
| 8473.30 | 011 | -- DRAM (Dynamic random access memory) modules, mounted one or more DRAMs on a circuit board, having a terminal to connect to automatic data processing machines or units thereof, whether or not parts other than DRAMs to just work for the function of DRAMs are mounted |
| 8473.30 | 019 | -- Other |
| 8473.30 | 090 | - Other |
| 8473.40 | 000 | Parts and accessories of the machines of heading 84.72 |
| 8473.50 | 000 | Parts and accessories equally suitable for use with the machines of two or more of the headings 84.70 to 84.72 |
