Duplex Board Grey Back, Duplex Board with Grey Back, Duplex Board, Coated Duplex Board. 1. Specification: 250GSM to 500GSM with grey back. 2. Sizes (sheet/reel): Sheets and reels are both available, 787 x 1092mm, 889 x 1194mm and any special sizes available; 3. OEM service with more than 20 years experience in the manufacturing and export of the packing printing indutry. OEM orders and customer-made artworks are welcomed. 4. Produced by most advanced production equipments, Heidlberg, Roybi, Automatic Folder Gluer, Film Blowing Machines, UV Machine, Die-cutting, Creasing Machines. 5. Transportation Way: FOB / CIF Ningbo / Shanghai, can arrange air shipping samples to clients' office directly.