Basic Information 1.Material: AL 6063 T5 2.Outside Diameter: 55 mm 3.Inside Diameter: 25 mm 4.Color:Silver 5.Shape:Round Product Process: 1.Making Process:Extrusion,Die Casting,Cold Forging 2.Basic Process:Sawing, Precise Cutting, Deburring 3.Deep Process: CNC Machining, Drilling, Milling, Tapping, Shearing 4.Surface Treatment: Oxidation, Anodized, Sand Blasting, Polished, Matte, etc 5. Color for ...