Sleeper, escape platform——Affected by environmental factors such as temperature, humidity, corrosion, etc., it also bears a variety of loads such as pressure, bending force, shear force and impact force. Composite products replace ordinary sleepers, concrete sleepers and ordinary escape platforms in the fields of high-speed rail, subway, railway freight, etc., with excellent fatigue resistance and corrosion resistance, superior low thermal expansion coefficient and low thermal conductivity, long service life and weight. Light and other features.