Ailopin:gun, redrawn, annealed (ilana gbigbe kaakiri pupọ)
Weld:welded longitudinally, redrawn, annealed (ilana gbigbe kaakiri pupọ)
Iṣakojọpọ:Tubing jẹ ọgbẹ ipele ti a fi sinu irin / awọn ilu onigi tabi awọn spools.
Gbogbo awọn ilu tabi awọn spools ti wa ni aba ti ni onigi crates fun rorun isẹ ti logistic.