Trees, turned into paper and cardboard.
design on the computer, cut by the carton cutting machine, Assembe it by hand
A third grade--solid bleached sulfate (SBS), used for folding cartons such as those used in retail stores--accounts for a large share of the remaining production.
Some are made of cardboard and some of plastic or polystyrene foam.
some are made from recycled paper fiber, others from plastic, while the most common are made of polystyrene foam.