... aluminum . 2.Surface treatement: Zinc, powder painting,galvanized... Welcome customized drawings or blueprints; OEM orders acceptable;Set top box ... totally 20 sets.We can provide in-house design, tool manufacturing, stamping and forging, secondary machining and coating ... are welcomed.Material:Steel, stainless steel, carbon steel, aluminum, zinc, brass, plastic etc.Making process:Stamping, deep ...