Bimetal bushing is based on steel and sintered with CuPb10Sn10 or CuSn6Zn6Pb3 as a lining layer. The strongest type of bimetal bushings and widely applicated in so many fields. This type has the best performance within the range of Cu-Pb alloy construcured bushing. Therefor it has a wide application and is mostly suitable for where is middle speed and high impact etc. https://www.jxwz-bearing.com/product/wzb-800-welding-bushing/wzb-800-welding-bushing-3.html#prettyphoto[group]/2/