... supplier of North Benz and other buyers in the world. Forging billets for further precision fabricating. The following is the details ... mould , drop forged, , die forging(3 sets), heat treatment, advanced testing machine2)process 3) materialstainless steel , carbon steel , alloy steel20CrMoTi, 34CrMo, 42CrMo, 20NiCrMo ...