Perfect Print A4 Copy paper, Office paper, Printing paper gsm:80g, 75g, 70gbrigntness:102~104% ,98~100%, 94~96%material: 100% pure wood we accept OEM, also can do famous brand , such as Double A, Paper One, Xeroxwe have SGS, FSC, ISO Certification.1. sepcification: ItemA4 ,A5,A3, 8.5x11,8.5x13,8.5x14 ,B1,B2BrandHB NO.1, UM, OEMMaterialMix..