Metal box 1.Material:aluminum 2.Process:CNC punching,bending,riveting. 3.Oxidizing. 4.OEM, ... & design: As your requirements.2) Materials: stainless steel, iron, aluminum, brass, alloy etc.3) Finish:plating(Zinc,Nikel,Chrome,Tin,Ag),painting ... by email or fax.You are highly appreciated. OEM metal aluminum box