Detailed Product Description

book binding 
1.Made of top quality, high grade PVC. 
2.Tough to bend, easy to crimp. 
3.Exceptional Clear Coils 

book binding  

Metal spiral coil 1/4 inches to 11/4 inches 
Color: white, black, silver, gold 
We can produce 200CTN/Day 
Not easy to change type

Applying the high-grade material to produce the double loop wire. High quality products, and no damage to coated layer of the wire

The material is no poison and harm. It's the most ideal material for producing high-quality notebook, desk calendar, hung calendar.

we can do according to the customer's requirements to produce all kinds specs and colors book binding materials, and offer good services to customers.

Color: wide choice of colors 2:1&3:1 pitch available

Tensile Strength: Tensile strong, not easy to change type, stable quality, low loss

Technical Date

size	Pitch	Back Ground(mm)	Wide Dia(mm)	Binding Thickness(mm)	Binding Page(page)
1/4	3:1	4.0*4.0	6.4	4.9	45
5/16	3:1	4.0*4.0	7.9	6.3	60
3/8	3:1	4.0*4.0	9.5	7.9	75
7/16	3:1	4.5*4.5	11.1	9.3	85
1/2	3:1	4.5*4.5	12.7	10.9	100
9/16	3:1	4.5*4.5	14.3	12.2	120
5/8	2:1	5.0*5.0	15.9	13.4	130
3/4	2:1	5.0*5.0	19.1	16.6	160
7/8	2:1	5.0*5.0	22.2	19.7	190
1	2:1	5.0*5.0	25.4	22.9	225

Application

Suitable for all kinds of document, notebook, diary book, and calendar.