Home > categories > Packaging & Printing > Protective Film > If I have known about the thickness, length and the diameter of the core of a roll of protective film, how can you know the diameter of the roll of film?
Question:
If I have known about the thickness, length and the diameter of the core of a roll of protective film, how can you know the diameter of the roll of film?
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Answer:
The length equals 3.14 times the sum of the diameter of the whole roll and the diameter of the core. Or the length equals 2 times the difference between the diameter of the whole roll and the diameter of the core.
