... as well as the common 4 color(CMYK)process.3) Materials: white paper board, duplex board with white back, copper plate, art ... book printing, paperback printing, children book printing, magazine printing, periodical printing, catalog, brochure, booklet, poster, label, flyer, leaflet, tagprinting, packaging printing, paper bag printing, card printing, envelop printing, calendars printing, etc ...