In May of 2018, Ruihe plant started a business with SCJV from USA on the project of LA subway project. Ruihe is the only manufacturer to get the certificate of AC 157F-485 issued International Accreditation Service (IAS). Special concrete ties have been customized for this project that meet American industrial standard as well. This project is expected to be closed at the end of 2019.
Wide sleeper is suitable for the ballasted track with a standard rail gauge of 1435 mm. Generally, it's installed in the station or vehicle parking lot so as to make the place clean and nice. It's used for radius ≥300 m of curve track.
SK II sleeper is suitable for ballast less track with a standard rail gauge of 1435 mm. It's used for radius ≥300 m of curve track and direct track and applies to steel rails of 50 Kg/m. The fastener matched is Type WJ8A/8B. The maximum axle load is 25 t.