a4 hanging folder hanging office file folder vertical storage book thickened raw material folder

Customized direct supply cardboard file box one-piece molding data file box thickened Kraft paper file box

Direct supply custom file box a4 file box 5.5cm raw material 3.5cm storage box Stationery Office file box

Factory custom red file box a4 document box 5.5cm office storage box raw material folder

Office supplies Kraft paper file bag thickened a4 paper file bag Kraft paper file bag stock