Hello from Oran Expansion joint, thank you for visiting Innovation pipeline enterprise website (www.xdguandao.com)! Over the years, Oran Oran Waterproof casing Expansion joint product partners Zhongyuan valve fittings enterprise multinational product promotion site has cultivated the market intensively, served the local market, and constantly improved 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 practice, please call Innovation pipeline [Expansion joint] technical engineer [ 0371-68676867] for more information!