... quality; 4. SGS certificate A5 paper file boxes BrandTonghongMaterialCoated paper, special paper, ivory cardboard, art paper, foil paper, brown/white kraft paper, card, etcMetal ring2", 2.5 ... " OR 3", NICKEL FREESurface finishedGlass/matt lamination, varnishing, UV coating, hot stamping, screen printing, die ...