Roncan Company offer Steel cast Copper Composite Bearing which is based on a high-quality steel and casting tin –bronze inside. Sintered copper is better than conventional welding technology increases, more solid. because the steel is not welded to complete, therefore more carrying capacity and enhanced service life, reduce downtime and maintenance, is the new generation of dual-metal steel copper-bearing alternatives. And there are widely used in large-scale construction machinery for balance bushing, the train engine bearing (bushing). Automobile production line, Port machinery, Turbines, Engineering machinery, etc