... ,brass 2)Heat Treatmment;Quenching,Tempering,Annealing Close die forging,Hot Forging,die forging ... : Normalizing ,Annealing, Solution, Passivation4) Production machine: Hot die forging presses,Friction press machine,Middle Frequency electric heater, ... ), construction machery parts,auto parts, motorcycle parts, electric equipment Parts, hardware tools, scaffold couplers7) Manufacturer certification: ISO9001 ...