Colgos is an internet machine company dedicated to creating an all-aspect user experience in print finishing machines. We provide Case making machines for hardcovers, cases, ring binders, etc. Casing-in machine for casing-in books in bookbinderies. Lay-flat block binding machine for photobook block production. Different solutions for on-demand and small-run production of hardcover books. For more information call us @ 0086-571-85462706