Innovation pursue excellence with hard work and honesty. Thank Kangkang customers for entering Innovation pipeline website! At the beginning of the establishment of the company, Kangkang Kangkang Waterproof casing Expansion joint honest cooperative enterprise Zhongyuan valve fittings enterprise international customer site took research and development as the basis of survival and continued to improve the application of new technologies in [Expansion joint] products! If you want to know more about the application of Expansion joint product new technology in Kangkang, please call Innovation pipeline [Expansion joint] technical engineer to learn more experience!