70 gsm A4 Copy PaperSpecification:Item :Copy PaperMaterial :100% wood pulpSize :A4, Letter size(8.5”x11”), 8.5”x13”,Legal size(8.5”x14”)base Weight: 70gsmWhiteness: 102-104%Packing: 500 sheets per ream, 5 reams per carton(box)No jam in photocopy machineNo double feedStay flat after copyingLeave no dust in the copy-machinev Nice appearance-white and cleanNice touch-smooth and bulkyNo see through-print both sidesBeen developed for: Photocopy Machines, Laser Printers, Ink-jet Printers, Fax MachinesTechnical data:Moisture 3.5%-4.5%,Thickness: 103-110 umSurface roughness TS ml/min: 75-175Surface roughness BS ml/min: 100-200Bending stiffness MD: >110 MnBending stiffness CD: >50 MnCIE whiteness: 167vCobb Test: 27-33 g/m2 27-33