... Mould design,qucik sample Exit Sign, Cast Aluminum - Single or Double Sided - Self Testing- AC w/Battery Backup Specification ... Treatment: Anodized, Power Coating, Sandblasting, Polishing, Grinding, Painting, Screen printing, Tumbling , Electroplating, Fabrication: Sawing, Deburing, Milling, Drilling, ... requirement. Exit Sign, Cast Aluminum - Single or Double Sided - Self Testing- AC w/Battery Backup