1)1/4" Aluminum Groove -6063 alloy,mill finish 2)Reliable Quality Best Price ... Size 1/4" Aluminum Groove - 6063 alloy, mill finish. T52 temper Specification:Material: Alluminum Alloy: 1x,2x, 3x, 4x, 5x ... Flexible SizeSurface Treatment: Anodized, Power Coating, Sandblasting, Polishing, Grinding, Painting, Screen printing, Tumbling , Electroplating, Fabrication: Sawing, Deburing, Milling, Drilling, ...