Seamless:kuboorwa, kudhirowazve, kuvharirwa (multi-pass circulation process)
Welded:yakarebesa welded, yakadhirowazve, yakanyungudutswa (yakawanda-pass circulation process)
Packing:Flatpack ironda ranga rakaputirwa pasimbi / madhiramu emapuranga kana spools.
Ese madhiramu kana spools akazara mumakrete emapuranga kuitira nyore logistic kushanda.