... common 4 colors (CMYK) process3) Material: white offset paper, kraft paper, special paper4) Finishes: Foil, Holographic, Embossing,UV ... varnishing,Hotstamping available6) packing:as your request5) With/without Window, Self adhesive/gummed/peel &seal.6) OEM are ... envelope,packinng list envelope,big size envelope,window envelope and so on..Materialoffset paper,Kraft paper, cardboard, special paper, art ...