Abubuwan da ake Aiwatar da suBakin karfe, carbon karfe, aluminum, tagulla, jan karfe, gami karfe da galvanized karfe da dai sauransu.
Masana'antu masu dacewaBinciken mai, tallafin gada, taragon dogo na karfe, tsarin karfe, sarrafa wuta, takin karfe, injinan noma, sarrafa bututu da dai sauransu.
Nau'in Yankan Bututun da ake AiwatarwaZagaye tube, square tube, rectangular tube, m tube, OB-type tube, C-type tube, D-type tube, alwatika tube, da dai sauransu (misali); Angle karfe, tashar karfe, H-siffa karfe, L-siffar karfe, da dai sauransu (zabi)