Double loop wire for bookbinding

Nylon coated double loop wire /twin ring wire for book bindingSize:From3/16"--9/16" for 3: 1 pitchFrom 1/4"--1-1/2" for 2: 1 pitchSpecial size and color available on request.Packing: Spools or per-cuting package. Twin Wire Specification:PitchSpecificationCircle Drive(mm)Binding thickness(mm)Quantity/ctn Diameter of wire(mm)P3:13/16"4.83.01180000.70P3:11/4"6.44.0840000.70P3:15/16"7.95.6600000.80P3:13/8"9.57.0430000.80P3:17/16"11.19.5320000.90P3:11/2&qu