This kind of bush is wrapped by double layer metal strip, the strip is based on steel backing and incoporated with bronze surface. The bronze layer is sintered twice under high temperature and calendered firmly onto the steel strip. The high bonding strength,load capacity and wear resistance make it withstand medium speed, medium load and low speed, high load conditions. The surface may be incorporated with various kinds of oil groves, oil pockets or oil indentations,which is properly designed in order to meet different necessities of various lubricating conditions. Lt is widely applied on various automobile engines, vehecle chassis, motorcycle clutches, rubbing plate of gear pumps and other hoist machines.