... 2.Heidelberg 4C printing machine 3.Welcome OEM/OD Hi Spiral binding notebook with hardcover ItemSpiral binding notebook with hardcoverSizeDifferent size ... paper:200~450gsm,or Leather,PU,Plastic,etc.BindingGlue binding,wire-O binding,section sewn binding,casebound,saddle stitched binding,perfect ... busy season,and mostly it's based on your quantity Spiral binding notebook with hardcover