... Tempering,Annealing Close die forging,Hot Forging,die forging Forged,Forged Ring,Hot Forging,Close Die Forging 1) Material: Carbon ... Annealing, Solution, Passivation4) Production machine: Hot die forging presses,Friction press machine,Middle Frequency electric heater, ... nickel, chrome plating, hot galvanized 6) Industry involved: Container forgings (cams, keepers, handle, hinge blade), machinery Parts ...