aluminum tube:Large section area of are widly used in industrial field.Can be provided as per the exact requirement of user. aluminum tubes and pipes used in industrial.Basic specification of large size of industrial Profiles are as belowed; TypeAlloyTemperCircumcircle DiametermmStandardindustrial profiles2xxx,6xxx,7xxx seriesH112,T4,T5,T6,O,F10320GB/T6892GB5237GJB25071xxx,3xxxx,5xxx seriesH112,O ...