Explanatory notes
… a support 6814.90 - Other This heading covers natural mica, further worked than merely rifted and trimmed (e.g., cut to … alia , for the manufacture of windows for ovens, stoves, furnaces, etc., of unbreakable lamp “glasses”, and of … (capacitors) fall in heading 85.32 . This heading further excludes : (a) Powdered mica and mica waste ( …