… apparatus, X-ray tubes and other X-ray generators, high tension generators, control panels and desks, screens, …
Explanatory notes
… apparatus, X‑ray tubes and other X‑ray generators, high tension generators, control panels and desks, screens, … can penetrate bodies which are impervious to ordinary light and that their absorption increases with the density … 90.30 ). (III) X‑RAY TUBES AND OTHER X‑RAY GENERATORS, HIGH TENSION GENERATORS, CONTROL PANELS AND DESKS, SCREENS, …