... , H12Shape:Square, Rectangle Shell/ Case/ HousingSize: Flexible SizeSurface Treatment: Anodized, Power Coating, Sandblasting, Polishing, Grinding, Painting, Screen printing, Tumbling , Electroplating, Fabrication ... , Housing, Case, Casing use for the cover of Switching Power Supply, # AC/DC Adapters, #Uninterupted Power Supply, # PC Power Suply, # Lighting Transformaer... which is popular useing all ...