Plain paper envelope design Printing:cmyk Material:offset paper Size is customed Supply OEM service Paper Envelope1) Size: Customized design2) Color ... common 4 colors (CMYK) process3) Material: white offset paper, kraft paper, special paper4) Finishes: Foil, Holographic, Emboss6) ... we produce are paper box, paper bag,envelope,cards,sticker,tags and labels,paper hanger and other paper products.If you ...