Factory customized high quality sinter metal bushing for auto engine

Product Description Commodity Factory customized high quality sinter metal bushing for auto engine Raw Material Iron,Stainless Steel,Cooper,Steel,Iron,Alloy steel Feature 1. High density from 6.7- 7.2 g/cm3 2. Hardness: HRC 30-50 3. Carbonitriding quenching and high frequency quenching in house 4. With high precision Certification CE,ISO Manufacture Process Mixing powder——Forming——Sintering——Sizing——After treatment——Carbonitriding quenching treatment——Oil impregnant——Packing—