... Hot! hot die forged steel shaft 2,High quality and lowest price 3,Fast delivery time. ... pre-forging →rough machiningor finish machining →surface treatment →product checking→ packing →deliveryForging MaterialCarbon Steel, Alloy steel,Stainless steelStandardISO, ... , Machining Center (Vertical Spindles), CNC Milling Machine, Bench Drilling Machine, Heat Treatment Equipments and so on.Surface ...