... , B5, 8.5X11", 8.5X13", 8.5X14", 11X17", OEM service A4 copier paper.A4 brightness 92%-110%.whiteness 150-160%70/75/80GSMA4/A3 ... able to supply large quantity and best quality copy paper. For 70gsm, A3, A4, B4, B5, 8.5X11", 16K, 8K are available; For ... 80gsm, A3, A4, B4, B5, 8.5X11", 8.5X13", 8.5X14 ...