Explanatory notes
… Other instruments and appliances, used in dental sciences : 9018.41 - - Dental drill engines, whether or not combined on a single base with other dental equipment 9018.49 - - Other 9018.50 - Other ophthalmic instruments and … own respective headings, for example, compressors ( heading 84.14 ), X‑ray, etc., apparatus ( heading 90.22 ). …