Binding spring in spools (3:1 and 2:1 spacing) is designed to work on manual, semi-automatic and automatic equipment.
The binding spring is made of domestic, specially prepared wire, coated with polymer, meets modern quality requirements, is suitable for production of any printing products (calendars, notebooks, brochures, notebooks, etc.), including publications for children.
The diameter of the binding spring (when compressed) determines the thickness of the products to be bound.