I'm very lucky that Shanghai friends can visit Innovation pipeline enterprise website! Create truly useful products that improve users' lives. For many years, Shanghai Shanghai Waterproof casing Expansion joint honest cooperative enterprise Zhongyuan valve fittings enterprise online promotion site has always taken research and development as the basis of survival, and continued to improve the application of new technologies in [Expansion joint] products! Call Innovation pipeline [Expansion joint] technical engineer to learn more about the application of Expansion joint product new technology in Shanghai!