Daya: bakin karfe wani nau'i ne na kayan ado na kare muhalli, ba ya ƙunshi methanol da sauran kwayoyin halitta, babu radiation, kare lafiyar wuta.
Na biyu: bisa ga bakin karfe, yanzu akwai bakin karfe mai launi, fasahar etching na bakin karfe, madubi na nika daidaitaccen bakin karfe, saman yashi, zane da sauran hanyoyin sarrafawa, ta yadda bakin karfen ya fi haske da kyau;
Ta hanyar etching fasahar, na iya zama a cikin bakin karfe fuska sassaƙe fitar da dama graphics, rubutu, da uku-girma, concave convex ji, yi bankwana da gargajiya bakin karfe farantin monotonous launi da hoto shortcomings.
Uku: Launi bakin karfe farantin yana cikin saman bakin karfe ta hanyar sinadarai, ta yadda saman bakin karfen farantin yana samar da Layer na oxidation Layer, bakin karfe da hadewar Layer oxidation, plating launi, kar a dushe.
Hudu: farantin karfe mai launi tare da luster na ƙarfe da taurin, mai sauƙin tsaftacewa, ba sauƙin lalacewa ba, karce;
Kyakkyawan diyya acid da alkali lalata, ba sauki ga tsatsa.

Ƙarin bayanin macro na bakin karfe mai wadata don Allah ziyarci: https://www.hermessteel.net