We offer best quality white a4 copy paper. Product descriptions of copy paper material: 100% wood pulpsubstance: 707580gsmmoisture 3.5 to 4.5%whiteness: >98%thickness: 103 to 110msurface roughness ts: 75 to 175mlminutesurface roughness bs: 100 to 200mlminutebending stiffness md: >110mnbending stiffness cd: >50mnopacity: >94%brightness: 101 to 104%cie whiteness: 148 to 152cobb test: 27 to 33gm2weighs: 20lbs75gno jam in photocopy machineno double feedstay flat after copyingleave no dust in the copy-machinenice appearance-white and cleannice touch-smooth and bulkyno see through-print both sidesbeen developed for: photocopy machines, laser, ink-jet printers and fax machinesdimensions:international standarda4: 210 x 297mma3: 420x 297mmamerica standard:8.5 x 11-inch (216 x 279mm)8.5 x 13-inch (216 x 330mm)other technical data:a4 size: 8.5 x 11-inch (216 x 279mm)weight:80g 98 to 103% brightness 75g 98 to 103% brightness 70g 98 to 103% brightness packing: 100% wood pulp 500 sheetsream 5 reamscartonproduct descriptionpackaging & shippingcompany informationour services quick detailstype:copy papersize:a4color:whitebrand name:c&dmodel number:210*297place of origin:china (mainland)name:copy papermaterial:100% wood pulpsubstance:707580gsmmoisture:3.5 to 4.5%whiteness:>98%thickness:103 to 110mweighs:20lbs75gcie whitenes:148 to 152brightness:101 to 104%opacity:>94%packaging & deliverypackaging details: 500sheetsream. Four color printing packing , 5packs carton or moredelivery detail: 20-30days after confirmed best quality white a4 copy paper product description product pictures of copy paper