A4 80gsm 102 to 104% whiteness copy paper, made of 100% ... /carton,4000ream / 20GP ( 800cartons ) 80gsm :5ream/carton,3900ream / 20GP ( 780cartons ) A4 Packing details :Shipment with Pallet( 500 sheets/ream , the factory ... ) 80gsm---500 sheets/ream ,5ream/carton,7800ream/1*20GP(1560cartons) A4 Copy paper