... Painting, Screen printing, Tumbling , Electroplating, Fabrication: Sawing, Deburing, Milling, Drilling, Turning, Tapping, Shearing, Insulation, Platic forming, Hydroforming Application: Aluminum extruded Aluminum Frame and Back ... Cover/Housing/Body/ Heat Sink/ Shell for all kinds of Square & Round LED Panel lights....... Toplight Aluminum Extruded Frame