The loop assembly generally refers to the double loop assembly. The double loop is the two strand steel loop which is preset in size and specification. The common material is divided into two kinds: sprayed steel loop and plastic loop. A circular hole or square hole is usually played on the left or top of the printed matter. The YO double loop is passed through the YO ring binding machine and pressed and fixed, and the whole binding procedure is completed.
When selecting coils, it is necessary to pay attention to the quality of the coils. Some loops will cause cracks in the binding because the plastic layer of the surface is not strong enough. Too thin the loop will also appear to be unbound.
When the loop is locked, no more pages can be added unless the coil is removed. The double loop binding cost is higher than the single coil. Of course, the binding effect is better and more durable. Use a double loop bookbinding book to read and query any page completely while reading.
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