Wallpaper colored glass hearts Wallpaper printing techniques include surface printing, gravure printing, silk screen-printing, rotary printing, and digital printing. Wallpaper is made in long rolls, which are hung vertically on a wall. Journal · 08 · 09+♥ 35 Last update at 09 · 08 · by milo ‧‧‧ One of 7740Wallpaper More in Wallpaper Home Wallpapercolored glass hearts PIFTW