... SGS 3. No paper jam & double feeding 4. OEM A4 Size Printing PaperSubstance:70-80gsmBrightness:90-110% Package:500 sheets/ream ... /P, Western UnionSpecificationsItem Copy PaperMaterial100% virgin pulpSizeA4, A3, Letter size(8.5X11), Legal size(8.5X13,8.5X14)Base Weight80gsm, 75gsm, 70gsmWhiteness96%-98 ... - smooth and bulkyNo see through- print both sides Wood A4 Size Printing Paper 80gsm