... Temper: O T4 T6 H14 H18 2.aluminum tube Color: silver, champagne, bronze, black Aluminium tube1) Alloy: 1070A~8A06,5A02 5A03 ... : high mechanical strength, good machining, high corrosion resistance,4) Color: silver, champagne, bronze, black5) Application: rails, building frames, parts in large ...