plastic coil for book binding office stationery

PVC coil,plastic coil,plastic binding spiral 1.environmental wire 2.various colors 3.reasonable price 4.good

plastic spiral ring,plastic coil,plastic binding spiral

1.Environmental plastic spiral

2.top plastic filaments,smooth and lustrous surface,strong adhesiveness,endure abrasion and humidity,be able to bear rusting ,eroding,and aging.

3. Innocuous material,which complies with the environmental safty standards of Occident.

4.1/4"(6.4mm)-----2"(50.8mm)

5. Notebook,album,calendar and so on.

Coil Diameter		Filament Size	Recommended Max.Book Thickness
1/4	6.4	1.27	3.4
5/16	7.9		4.9
3/8	9.5	1.57	6.5
7/16	11.1		8.1
1/2	12.7	1.78	9.7
9/16	14.3		11.3
5/8	15.9		12.9
3/4	19.1	1.91	15.1
7/8	22.2	2.29	18.2
1	25.4		20.4
1-1/8	28.6		23.6
1-1/4	31.8		25.8
1-/1/2	38.1	2.79	32.1
1-3/4	44.5		38.0
2	50.8		42.8