... ;Quenching,Tempering,Annealing Close die forging,Hot Forging,die forging Forged,Forged Ring,Hot Forging,Close Die Forging 1) Material: ... Normalizing ,Annealing, Solution, Passivation4) Production machine: Hot die forging presses,Friction press machine,Middle Frequency electric ... Oiled (rust-proof), zinc, nickel, chrome plating, hot galvanized 6) Industry involved: Container forgings (cams, keepers ...