ClockSpring|NRI is a Houston-based manufacturer and provider of high-performance critical infrastructure construction and repair products and associated engineering support and training services. Clockspring|NRI solutions are used to construct, maintain, and rehabilitate pipelines, natural gas distribution lines, high-consequence industrial pipework, electrical grids, and civil structures. ClockSpring|NRI composite pipe repair systems and inline insertion valves are used in more than 75 countries and include industry-leading products such as Clock Spring�, Syntho-Glass� XT, Scar-Guard�, Contour, and DiamondWrap� composite products, as well as the award-winning AVT EZ Valve� for water and gas lines. All ClockSpring|NRI products are easy to install, cost-effective to deploy, and durable for decades.