... , alloy steel Process: Forged Basic parameters of forged brake disc: Material GB/T 307742CrMoMaterial recheckMeet with the GB ... ,Protecting package General informations: Name: Carbon steel forged brake discProcess: Forged Leading products: Forging pieces, such as ... of flanges, gear rings, brake discs , roller ,tubular parts, and other forging parts.Producing equipment: 6000ton hydraulic press machine, ...