Duplex Board with grey back 1, top quality, best price; 2, 220-550gsm; 3, good sevice; 4, for packaging boxes, etc. 5, 100%virgin pulp, recycled. 6, Packaging: in reels or sheets; 7, Grade: A, B Duplex Board with Grey Board is widely used in Carton, Gift box, toothpaste box, Specifications Paper T more...