2012 pu diary : 1.ISO 9001:2000 qualified 2. 2%-10% lower than other suppliers 3.100% quality guaranteed leather notebook:1. paper stockwhite cardboard, grey cardboard, gloss/matte art paper, special type paper,C2S stock,grey board, kraft paper, etc.2. printingoffset printing, digital printing,CMYK printing, screen printing3. bindingperfect binding,wire-O, spiral, 3D book binding, thread sewing ...