31 And 21 Pitch Double Loop Spiral Binding Rings
Why used wire binding notebook? Because Double Wire gives your books a very professional appearance, allows the pages to turn very easily, and lets the book lay completely flat when open.
Description
3:1 and 2:1 Pitch Double Loop Spiral Binding Rings
Products Informations:
What's is double rings?
Double Wire Binding Rings have other names Binding Wire Double Loop, Double Rings, Double Rings Coil, Spiral Binding Coil , Coil Binding, Spiral-O Binding Wires and Wiro Binding ETC,There has size from 1/4 to 1-1/2 , It’s use for difference thick book binding.
What's Double Binding Ring we can made?
1) Common pre-cut double wire as pictures

2) 90 ends-bending

3)Ending with glue

4) 270 ends-bending.

Use ending with glue,90 ends-binding, 270 ends-bending is safe for use, the people will not get hurting when their reading books.

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