… paperboard, plastics or similar backing materials) of a thickness (excluding any backing) not exceeding 0.15 mm. …
Explanatory notes
… paperboard, plastics or similar backing materials), of a thickness (excluding any backing) not exceeding 0.15 mm. … (in any case, not exceeding 0.15 mm in thickness). The thinnest foils, used for imitation gilding, etc., are very … etc.), or printed. The limiting thickness of 0.15 mm includes coatings of varnish, etc., but, on the other hand, …