... 1)Size: Different size, according to customer's drawing.2) Material: carbon steel, alloy steel, ... wire-cutting, auto lathe, drilling, polish machine,etc.4)Machining processing: Cutting, welding, punching, drilling, turning, milling, grinding, rolling, stamping, cold drawing ... , bending, spinning, forging, etc.5) Precision: Turning and Milling: +/- 0.002 mm (+/-0.000098 inch) ,Wire cutting ...