... CNC machining available Anodizing or Epoxy powder coating Aluminum Extrusion partOther available processes: sand casting, investment casting ... machiningAvailable materials: cast iron, carbon steel, stainless steel, aluminum, brass, and zinc alloyStandards: JIS, DIN, ASTM, ... size basis, aluminum carries two-thirds the current of copper at considerably lower cost.Excellent thermal propertiesAluminum is ...