Comb Binding Machine in Coimbatore Comb Binding Machine in Coimbatore (sometimes referred to as one of many ways to bind pages together into a book. This method uses round plastic spines with 19 rings (for US Letter size) or 21 rings (for A4 size) and a hole puncher that makes rectangular holes. Comb binding involves securing multiple sheets of paper with a multi-ring plastic spine. #CombBindingMachineinCoimbatore
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