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Zafi rolling (exverudedm bututun): zagaye bututu Billet→zafafawa→yi wa rawa→Uku-Roll giciye mirgina, ci gaba da mirgine ko cirewa→tsagewa→sizt (ko rage)→sanyaya→daidaita→Gwajin Hydraulic (ko ganowa)→alama→ajiya

Raw kayan don mirgine bututu mai zagaye shine zagaye belet, da zagaye bututun gona ya yanke ta hanyar mitoci na 1 mita, kuma a kwashe zuwa wutar lantarki. An ciyar da Billet cikin wutar kan wutar, zazzabi kusan digiri 1200 Celsius. Man fetur shine hydrogen ko Acetylene. Ikon zafin jiki a cikin tanderace batun ne. Bayan zagaye bututu ya fita daga wutar, dole ne a soke ta ta hanyar matsi.

Gabaɗaya, mafi gama gari shine babban mai satar ido. Wannan nau'in mai zurfi yana da ingantaccen samarwa, ingancin samfurin, manya manya fadada, kuma yana iya sa nau'ikan ƙarfe iri-iri. Bayan sokin, zagayen zagaye na tubalin an yi nasara da zagaye uku na giciye mirgina, ci gaba da mirgine ko cirewa. Bayan fashewa, ya kamata a cire bututun don sizing. Sizy by babban Rotary Distary Cone Black ramuka a cikin Billet don samar da bututu. Diamita na ciki na bututun ƙarfe an ƙaddara shi da tsawon lokacin da ke cikin diami na mayaƙan mawaƙin. Bayan bututu na karfe yana sized, yana shiga cikin hasumiya mai sanyaya kuma yana sanyaya ta hanyar feshin ruwa. Bayan murfin karfe yana sanyaya, zai daidaita.

Bayan ya daidaita, an aika da bututun ƙarfe a cikin mai gano baƙin ƙarfe (ko gwajin hydraulic) ta hanyar bel ɗin ganowa na ciki. Idan akwai fasa, kumfa da sauran matsaloli a cikin bututu, za a gano su. Bayan ingancin yanayin bututun ƙarfe, ana buƙatar zaɓi mai tsayi mai tsafta. Bayan da ingancin yanayin bututun karfe, fenti lambar serial, bayani, lambar tsari, lambar tsari, da sauransu tare da fenti. Da kuma motsa cikin shago ta hanyar crane ..