Document bag: Greyboard+kraft paper Customized size Used for packaging documents Document bag:1) Material: grey board, art paper, kraft paper, offset paper, woodfree paper. 2) Size: customized size, according to your requirements3) Color printing: CYMK printing, 4C color printing, full color printing, Pantone color printing4) Surface finishing: gloss lamination, matt lamination, UV coating, spot ...