... 80gsm 3. basic brightness : 94~104% 4.OEM available white copy paper materilweightbrightnesspackingsize100% virgin wood paper70-80gsmAbout 92%-104%500 sheets ... carton A3,A4,B4,B5 the features of the white copy paperNo jam in photocopy machineNo double feestay falt after ... copyingHigh image contrast,clarity and sharpnessleave no dust in the copy machinenice touch-smooth and bulkycan't see through-print ...