MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY
Double-walled corrugated PVC pipes. These pipes are designed to be light and strong to protect power and communication cables such as those laid underground. The material used here is the thermoplastic polymer polyvinyl chloride (PVC). One of the most commonly produced plastics in the world, PVC is used in a wide variety of products. It can be used with or without varying amounts of plasticiser that make it more flexible or rigid as required.
Model release not required. Property release not required.