... lower than other suppliers 3.10years experience children's board book:1. paper stockwhite cardboard, grey cardboard, gloss ... printing3. bindingperfect binding,wire-O, spiral, 3D book binding, thread sewing binding, square back binding, round ... it if you could send us the picture of your sample so that we can have ... a better understanding of it.7. how to make a customized board book * inform us your ...