1)Material:Steel,SS,copper,brass 2)Heat Treatmment;Quenching,Tempering,Annealing Close die forging,Hot Forging,die forging Forged,Forged Ring,Hot Forging,Close Die Forging 1) Material: Carbon steel, alloy steel, stainless steel, aluminum, brass, magnesium,Titanium2) Product weight from 0.05kg to 20kg.3) Possible Heat Treatment: Normalizing ,Annealing, Solution, Passivation4) Production machine: ...