Our long-term buy A4 copy paper. 70 grams, 75 grams, 80 gramsOur long-term buy A4 paper. Please give me your offer. We need 70 grams and 80 grams. 100% wood pulp. Brightness 98-106. Please tell me, the minimum order quantity. FOB prices. Port. Supply capacity. Delivery period. Conventional packaging. We need a month 4-8 20 feet.