... surface,high production efficiency,Very competitive price Product Name:rocker arm.Material: alloy steel(A380,ADC10,ADC12 etc.),zinc alloy,magnesium ... alloyProcess:Die castingsSurface Finish:sand blast,spray model,polishing,ElectroplatingTrade Term: FOB, CIF, CNF, etc. Advantage: 1.Size ... give you the early reply Asap. New hot forging rocker arm