How do you take all the best traits of a steel pipe and make it lighter and more flexible, while also introducing resistance to corrosion, weathering, and cracking? The answer is polyethylene (PE), a type of plastic that is rugged, flexible, and durable. And with a 100-year service life, PE pipes are among the longest lasting, most durable on the market. http://www.asiasenpu.com/pipe/pe-pipe/