aluminum die casting: 1.aluminum chair top part 2.ADC12 al die casting part 3.chair foot part 4.aluminum die casting 1.Aluminium die casting, sand casting, die casting, gravity casting, high pressure die casting, low pressure ... machining: CNC, milling machine, drilling machine, numerical lathe, all types of lathe.4.Surface finish process: polishing, sand blasting, heat treatment ...