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Barentu Waterproof casing Expansion joint regional security service provider--Zhongyuan valve fittings is one of the earliest enterprises engaged in the development and sales of BarentuExpansion joint in China. Create truly useful products that improve users' lives. has been focusing on BarentuExpansion joint and pushing it to the market since Zhongyuan valve fittings began to adhere to the standard of international quality management system to standardize the management of Barentu Expansion joint Expansion joint trusted partners--Zhongyuan valve fittings headquarters. With the strong support of space flight industry colleagues in various countries, Zhongyuan valve fittings Create brilliance with cohesion, the enterprise has gradually developed and become a preferred partner for customers in the space flight field!