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Un article trouvé pour ce sujet.
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The diameter of a roll of plastic |
2009-03-24 |
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truong pose la question :
hi. i have trouble to calculate the diameter of the plastic roll. the sheet is 765 m long and 0.8 mm to wrap around the core 400 mm in dia. please help me with the formula to calculate the dia of plastic roll, thanks in advance
Harley Weston lui répond. |
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