70g 80g, Office Supply, A4, Copy Paper gsm:80g , 75g,70g,brigntness:102~104% ,98~100%, 94~96%material: 100% pure wood pulpwe 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,B2BrandRedford, OEMMaterialMix wood-pulp, 100%pure..