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70 ,75 ,80g office printing paper

70 ,75 ,80g office prin

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Description

70 ,75 ,80g office printing paper

Super premium multi-purpose (Size : 70 ,75,80GSM 8.5*11,A4,8.5*13,A3,11*17,

and foolscap paper sheet is 17 x 13.5inches (432x343 mm) .) papers no recycling.
Basic weight: 70 ,75 ,80g/m2,
Moisture 3.5%-4.5%,
Whiteness: >98%
Thickness: 103-110 um
Surface roughness TS ml/min: 75-175
Surface roughness BS ml/min: 100-200
Bending stiffness MD: >110 Mn
Bending stiffness CD: >50 Mn
Opacity: >94%
Brightness: 101-104%
CIE whiteness: 148-152
Cobb Test: 27-33 g/m2 27-33

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