aluminum tube 6061 6063 t6, extruded tube and pipe. Both thin and thick wall ... Small, midium and large diameter availa aluminum tube 6061 6063 t6 ;Alloy: 1000,3000,5000,8000,6000,7000 series,Temper: ... O,F,T4,T6,H14,H34,H32 There are different dimension can be ... ~1805~40GB/T4437.1GJB23812,6,7 seriesH112,T4,T6,O,F20~1805~40GB4437GB/T4437.1GJB2381aluminum tube 6061 6063 ...