Wire-O Bound Book
Our most common double-coil binding is wire-o bound notebooks. The advantage of this binding is that it is not only beautiful but also very convenient for writing.
The double coil is a two-strand steel coil with preset dimensions and specifications. The common materials are divided into spray steel ring and plastic coil. Usually, round holes or square holes are made on the left or the top of the printed matter. After the YO double coil is passed through and the YO ring binding machine is pressed and fixed, the entire binding process is completed.