There is a tendency to utilize underground space for the less ornamental purposes of civilization; there is the Metropolitan Railway in London, for instance, there are new electric railways, there are subways, there are underground workrooms and restaurants, and they increase and multiply.
Polystyrene can be naturally transparent, but can be colored with colorants. Uses include protective packaging (such as packing peanuts and CD and DVD cases), containers (such as clamshells), lids, bottles, trays, tumblers, and disposable cutlery.
What is the foam lining made out of? The material used to make the foam liners is open cell polypropylene foam. What material is used for the OtterBox? The type of plastic used to make the colored OtterBoxes is an ABS plastic thatÃ¢â¬â¢s reinforced with fiberglass. The type of plastic used to make clear OtterBoxes is high impact polycarbonate. All Otter Boxes (regardless of material used) offer the same protection.