... of the Yanggtze River 1. Size: within customer’s requirments.2. Artwork: customer's designed artworks are welcome, and we can design ... Binding: Perfect bound binding, Wire-O, Spiral, 3D book binding, Thread sewing binding, Square back binding, Round back ... designated manufacturer of postages and stamps, one of the three stamp printers, and China’s earliest anti-counterfeit and secret-keeping technology ...