... hub, base frame, torque support, planet carrier, bearing housing, gear housing, sealing cover and other ductile iron castings & parts.Thermoelectricity ... cover and other parts; ductile iron transporter parts as housing, valve body & core, etc.Hydroelectric system: water turbine ... & dyeing industries : All kinds of stainless steel pump housing, cover, impeller, valve body, valve cover, valve plate ...