... sample are available 4,As your opinions pvc a5 spiral diary 1. pp,pvc leather cover, hard & soft cover 2. offset ... printing 3. spiral, wire-o & perfect binding Notebooks/Agenda/Calendar/Diary Wide range of notebooks, including pp and pvc leather, hardboard ... bonding, perfect bonding, sewing bonding, stitching bonding available.3. wood-free paper, coated art paper C1S C2S, book paper, magazine paper ...