... exact requirement of user. aluminum tubes and pipes used in industrial.Basic specification of large size of industrial Profiles are as belowed; TypeAlloyTemperCircumcircle ... DiametermmStandardMin.Max.industrial profiles1xxx,2xxx5,xxx,6xxx,7xxx seriesH112100530GBn2221xxx,2xxx,5xxx,7xxx seriesO1005302A06,2A11,2A12,2A50,6061T41005302xxx,6xxx,7xxx seriesT6100530 aluminum profile (industrial )