Ключевые слова: air, airmail, background, blank, brown, bunch, business, cardboard, cargo, commerce, communication, corrugated, delivery, document, economy, envelope, file, heap, letter, mail, meter, office, package, packaging, packet, paper, paperwork, parcel, pile, post, postage, priority, recycled, seamless, send, sheet, ship, shipping, stack, stationery, stock, template, texture, wallpaper,