Dear Sejong friend, thank you for visiting Innovation pipeline official enterprise website! Over the years, Sejong Expansion joint rest assured enterprises Zhongyuan valve fittings Sejong Expansion joint overseas product service station has continued to make technological innovation and continuously improve the application of new technologies in [Expansion joint] products! To provide high value services to our customers and a high quality of life to our employees. If you want to know more about the application of [Expansion joint] product new technology in practice, please call Innovation pipeline [Expansion joint] technical engineer to learn more practical information!