OVM is now a leading product supplier and specialist contractor in China in the field of prestressing and other special construction techniques. With a strong reputation for reliability, professionalism and innovation, OVM Systems have successfully worked on numerous projects, including bridges, buildings, tunnels, harbours, dams and nuclear power plants, and in doing so have achieved worldwide acknowledgement

Nord-Lock Group is a global leader in bolted solutions. In 1982, the original Nord-Lock® wedge-locking technology that safely secures bolted joints was developed. Since then, our range of innovative bolting technologies and expertise has grown to be the most comprehensive on the market, incorporating Superbolt™ mechanical tensioners, Boltight™ hydraulic tensioners and Expander® System pivot pins. All solutions are developed and manufactured in-house, ensuring they meet the highest standards in the industry. Our team of dedicated experts work closely with customers to provide solutions that maximize the productivity, safety and reliability of the application. Our services focus on life cycle profitability, design, production, training and installation support.