NZ's First Concrete Sealed Manhole System
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NZ's First Concrete
Sealed Manhole System  Hynds Drainage has recently released a range of concrete sealed manholes. Available in 1050, 1200 and 1540mm diameters, the Hyseal manhole is designed for sewer applications where a pressure sealed leak-free system is required. Joints are factory tested to 90kPa. |