A4 clear book with storage box 1. All material: 100% PP, acid free,eco friendly, archival ... .Certification: Passed the SGS, ISO9001-2008, EN13432&ASTMD6400, AS4736 etc.9.Trade Assurance: 4+ years golden supplier in Alibaba. We have ... and the thickness for inner pages. B: Any printing and its printing area, color quantity C: Order quantity D: Package requirement ...