A4 copy paper ,80g,500 sheets /ream ,5reams /box ,400ream/mt ,about 7800reams/20占쏙옙ontainer . A4 copy paper , 80g ,100% wood pulp ,brightness is 100%-102%.A4 copy paper , 80g ,100% wood pulp ,brightness is 98%-100%.A4 copy paper ,80g ,mixed pulp , brightness is 94%-96%.
