... Whiteness: 92-96%,98-100%,102-104%,110% China Double A a4 copy paper ItemA4 Copy PaperMaterial100% Wood PulpSizeA4, A3, Letter size ... reams 70gsm8200reams4100 reams8800 reams6700 reams KeyperformanceNo jam in photocopy machineNo double feedStay flat after copyingLeave no dust in the copy-machineNice ...