Item Copy Paper Material Recycled pulp/Mix pulp/100% virgin wood pulp Size A4, A3, Letter size(8.5X11), Legal size(8.5X13,8.5X14) Base Weight 80gsm, 75gsm, 70gsm Whiteness 98-100%, 102-104%,108-110% Packing 500 sheets per ream, 5 or 10 reams per carton(box) Loading Qty(20ft) Substance A4 A3 Letter size Legal size 80gsm 8000/6300 reams 4000/3150 reams 8000/6300 reams 6900/6300 reams 75gsm 8200/6300 reams 4100/3150 reams 8500/6300 reams 7200/6500 reams 70gsm 8500/7200 reams 4250/3600 reams 8800/7200 reams 7600/6700 reams Key Performance No jam in photocopy machine No double feed Stay flat after copying Leave no dust in the copier Nice appearance- white and clean Nice touch- smooth and bulky No seeing through- two sides printing