... tube 1.semi-manufactured square-tube 2.semi-manufactured storehouse square copper mould tube Range MaterialsCuDHP, CuAg, CuCrZr, CuNiPCross sectionSquare, rectangular, ... (across), larger sizes available on requestInternal profileParallel, single CONE-shaped, multi CONE-shaped, parabolic, special paraboicCurvingStraight, curvedRadius of the inside corner ...