... export business 2.10-15% less than market price 3.100% best quality paper cardboard file folder Itempaper cardboard ... printingThickness of the chipboardoptions like 2mm, 2.5mm, 3mm, 3.5mm, 4mm, etcThickness of the spineoptions like 30mm, 35mm, ... hot stamping, embossed, UV, etc.Ringsoptions like 2 pcs, 3 pcs, 4 pcs, 20 pcs, 26 pcs, etcRing shapeO-shaped, D-shapedArtwork formatPDF, AI, etcDelivery ...