Type: Main bearing, Conrod bearing, Flange bearing (one-piece-made/not one-piece-made) Raw material: AlSn20Cu, AlSn12Si2.5Pb1.7, CuPb24Sn/CuPb24Sn4 Surface Treatment: Remove the Oxide Layer, Plating PbSn10, Plating PbSn10Cu3, Sputter