Springfield, Mo.-based United Poly Systems LLC is extruding a new line of HDPE pipe in the same sizes as traditional copper tubes and iron pipes for a range of applications, particularly water uses.

Houston-based Westlake Corp. is launching a new product in the United States — molecularly oriented PVC (PVCO) pipe — and will manufacture it at a new 190,000-square-foot plant in Wichita Falls, Texas ...