JF800 series bimetal bushing, bushing, thrust gasket, with high quality low carbon steel as the matrix, the surface sintered bronze powder, suitable for high load and low speed rotation, swing movement. It has the characteristics of low friction coefficient, good wear resistance, long service life, good anti-bite performance, etc. The copper alloy layer can be processed into various types of oil holes and oil grooves according to the requirements. The products are widely used in mining machinery, steam truck, construction machinery, agricultural machinery, steel rolling machinery and so on.