... 3.Extruded, cold finish 4.Delivery strictly Aluminum alloy rod1.Model: 2A12, 6061, 6082, 7075, 7A04, 7A09, 2A50, 2A14, 6063, 5A05 ... . Surface Treatment : drilling &punching &polish&anodized4.Anodized Colour: silver, red, black, blue, and so on.5.Technique procedures: die casting , make ...