The part is aluminum die casting, and it have smooth surface and strong mechanical properties.
 In-House Secondary Operations to Diecastings:
  Die trim or surface grind flash from diecasting parting lines.
  Drill holes and thread or tap holes in diecasting parts.
  Parting line and flash sanding.
  Mill surfaces in diecasting parts.
  Vibratory deburr surface finish on diecastings.
  Tumble deburr diecastings.
  Pressure testing diecastings.
  Aluminum diecasting parts machined to customer specifications.
Outside processes to Diecastings:
  Penetrant Inspection.
  Impregnation as necassary.
  Chemical film or Chem-film.
  Anodize.
  Polish.
  Burnish.
  Paint or powder coat.