... .through TS16949 certificate 1.Size: according to the drawing.2.Material: carbon steel, alloy steel, stainless ... nitrogen treatment, carburizing hardened.6.Process: stamping, deep drawing, welding, sheet metal fabrication, and metal assembly.7 ... Application:used for vehicle Pls feedback your design drawing,so that we can quote the best ... welcomed. 2012 top-selling of Fuel pump assembly with high quality