Our PVC duct system provides several benefits over alternative systems including quick and simple installation, reduced installation times, lower on-going maintenance costs, and reduced interruption to traffic. These benefits were demonstrated on the 23km A1M Hatfield to Stevenage route. For this project, we manufactured bespoke, smooth-wall, purple 110mm OD duct with a 103mm ID duct, with an interference fit integral ring seal so

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