1)1/4" Aluminum Groove -6063 alloy,mill finish 2)Reliable Quality Best Price 3)OEM Mould Design,quick ... 4)Verious Size 1/4" Aluminum Groove - 6063 alloy, mill finish. T52 temper Specification:Material: Alluminum Alloy: 1x,2x, 3x, 4x ... of customer requirement. 1/4" Aluminum Groove - 6063 alloy, mill finish. T52 temper