| Harmonized Tariff Schedule | ||
|---|---|---|
| Statistical code | Description | |
| H.S. code | Domestic code | |
| 9020.00 | 000 | Other breathing appliances and gas masks, excluding protective masks having neither mechanical parts nor replaceable filters |
| 9031.41 | 000 | For inspecting semiconductor wafers or devices or for inspecting photomasks or reticles used in manufacturing semiconductor devices |