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Nanjing RenQiao electromechanical co., LTD. Is a company dedicated to provide the screw extrusion equipment vulnerable parts national high-tech enterprise specialized in the solution. The company after years of research and development, to provide the nickel-based tungsten carbide coating bushing and screw elements. With excellent wear resistance and corrosion resistance of gain high recognition in the industry. Adhering to product for a longer service life, create value for customers, enhance core competitiveness. We take "first-class quality, service" business philosophy for the general customers to provide quality services.