Dear Blufield [Expansion joint] customer, thank you for visiting Innovation pipeline official enterprise website! Over the years, Blufield Waterproof casing customers trust enterprises Zhongyuan valve fittings Blufield Expansion joint overseas online promotion station has insisted on taking research and development as the basis of survival, and has continuously improved the application of new technologies in [Expansion joint] products! Make more Chinese products integrate into the international market！ 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 first-hand information!