... flat and not move, so there will be no air bubbles. The cover, cardboard and central spine ... 230mm9.Weight: 50kgAbout our company: Jinan Shuoying Trade Co.,LTD is specialized in designing manufacturing,selling high-quality album ... equipments are:Laminating machine,Bronzing and polishing machine,intergrative machine,gluing machine,Dring-pressing machine,Managing machine,Paper cutting machine and so on. ...