... or mixed woodplup or recycled pulp a4 copy paper 2. 20years experience 3.70g,75g,80g copy paperA4 copy paper1, 70, 75, 80gsm, 2.Size ... :A3, A4, B4, B5, 8.5"x11", 8 ... ~7Wax pickingA≥14UsageOfficePacking500sheets/ream, 5-10reams/carton. Packing for office paper: For sheets paper :500sheets/ream, 22-27reams/pallets ;