100% wood pulp A4 Size Copy Paper 80gsm for office computer printing Substance: 80 GSM Brightness: 102%-104% Opacity: 95% Roughness: 140 Ml/Min Weight: 2.56lbs Moisture 3.5%-4.5%, Whiteness: CIE167 Thickness: 110UM Surface roughness TS ml/min: 75-175 Surface roughness BS ml/min: 100-200 Bending stiffness MD: 110 Mn Bending stiffness CD: 50 Mn Cobb Test: 27-33 G/M2 27-33 Item Copy Paper Material 100% virgin wood pulp Size A4, A3 Base Weight 80gsm, 75gsm, 70gsm Whiteness 92-96%,[...]