Infrapipe broadens the range of diameters it can produce in its spiral-wound HDPE range, with culvert and civil pipe in SN4/8/16 now available in 250,375,450 & 525 diameters to complement the larger range from 600 to 3200mm diameter. “Now Kiwi contractors, councils and farmers have a better solution to concrete in the smaller diameters” explained Fynn Macdonough, “and its recyclable too”