... , A3, 8.5"x11", 8.5"x14" 3.Base Weight: 80GSM, 75GSM, 70GSM 4.Whiteness: 104 Super Quality office a4 size copy ... machines from wearing and maintaining.# Double-copying, and economic: high-quality material makes the paper with good opacity. Double-copying still ... 70gsmWhiteness92-96%, 98-100%, 102-104%Packing500 sheets per ream, 5 reams per carton(box)Load Qty(20ft)GSMA4A3Letter sizeLegal size80gsm7800 ...