... Steel,Alloy steel,Stainless steel optional. Precision Forged & machined Parts ----Features: 1.Processing technology:free forging ... punching machines; 2500T hydraulic press machines; Rolled-forged machines.4.Heat treatment equipments: normalizing furnaces,quenching ... frame,forged link rod,connecting rod,big ring gear,forged gear blank,forged gear,forged flange shaft,forged cover,connecting flange,forged ...