| 摘要 |
<p>A product roll comprising a cylindrical, particularly hollow core (10) with a number of windings (11) of a strip of graphic film thereon. The product roll (10,11) is provided with visually discernible indication means (23) which, at least approximately, indicate a remaining strip length of the product. In a particular embodiment the indication means comprise a measuring instrument (20) which is able and adapted to determine a stack thickness of the windings (11) and convert this into the strip length.</p> |
