... ribbon 5.OEM available MaterialIvory board(250G,300G, 350G)Art paper(128G, 157G, 200G, 250G, 300G)Duplex board with ... grey back(250G, 300G, 350G,400G)Grey Paper(250G, 300G, 350G, 400G)Craft paper(100G, 120G, 150G, 200G, 250G, 300G ... outer cartonsQuality ControlFrom material purchase, pre-production machine testing, 3 times assessment for finished goods, packing etcSample chargeSample charge will be ...