The blank core of the certificate is 12k 21*29cm

▸ Specifications and models: 12K (21×29cm) / 8K optional
▸ Material characteristics: special paper base for thickened certificates
▸ Printing process: hot stamping font prefabrication + laser printing compatible
▸ Product composition: single inner core without binding
▸ Basic parameters: plane unfolded size 21×29cm