Injin bututun ƙarfe ya ƙunshi nau'ikan iri daban-daban waɗanda aka keɓance don hanyoyin masana'antu daban-daban da buƙatun samarwa. Daya daga cikin mafi yawan nau'ikan shine **ERW (Electric Resistance Welding) injin bututu**, wanda ke amfani da igiyoyin lantarki don ƙirƙirar walda a cikin madaidaicin bututu. Niƙa na ERW suna da yawa kuma ana amfani da su sosai don samar da bututu a cikin diamita daban-daban da kauri na bango, dacewa da aikace-aikacen da suka kama daga gini zuwa bututun mai da iskar gas.
Lokacin aikawa: Yuli-27-2024