... file folder 1.18 years experience in export business 2.10-15% less than market price 3.100% best ... side or both sidesPrintingoffset printingThickness of the chipboardoptions like 2mm, 2.5mm, 3mm, 3.5mm, 4mm, etcThickness of the spineoptions ... lamination, hot stamping, embossed, UV, etc.Ringsoptions like 2 pcs, 3 pcs, 4 pcs, 20 pcs, 26 pcs, etcRing shapeO-shaped, D-shapedArtwork formatPDF, AI, ...