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.
Generally, XII sleeper is suitable for ballasted 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 50Kg/m or 60 Kg/m. The fastener matched is Type II elastic strip.
Ballasted turnout sleeper is mainly used for general routes and trans-regional welded rail track traffic, with a standard rail gauge of 1435 mm. It allows the maximum speed 120 Km/h, and applies to steel rails of 50 Kg/m or 60 Kg/m.