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