Galvanized karfe bututu rarraba zuwa sanyi galvanized bututu, zafi galvanized bututu, da farko an hana, da kuma na biyu da jihar inganta wucin gadi iya amfani. A cikin shekarun 1960 da 1970, kasashe masu tasowa a duniya sun fara haɓaka sabon nau'in bututun, kuma sun hana bututun galvanized. Ma'aikatan gine-gine guda huɗu na kasar Sin kuma sun fitar da wata sanarwa da ta hana bututun galvanized tun daga shekaru 2,000, bututun ruwa mai sanyi na sabon gundumar da aka gina a halin yanzu ba sa amfani da bututun galvanized, wasu gundumar ruwa mai zafi suna amfani da bututun galvanized.

Hot galvanized bututun ne samar da kayan aiki layers sa narkewa karfe amsa da baƙin ƙarfe substrate, don haka sa substrate da rufi hadewa biyu. Hot galvanizing ne farko da karfe bututu don acid wanke, domin cire karfe bututu oxide farfajiyar, bayan acid wanke, ta hanyar ammonium chloride ko zinc chloride ruwa bayani ko ammonium chloride da zinc chloride hade ruwa bayani tank, sa'an nan kuma aika a cikin zafi nutsewa plating tank. Hot galvanized yana da m rufi, karfi adhesion, dogon rayuwa da sauran amfani. Hot galvanized karfe bututun substrate da narkewa plating gudanar da rikitarwa jiki, sinadarai halayen, samar da m lalata tsarin zinc da baƙin ƙarfe gami layer. Gidan gami Layer haɗuwa tare da tsabta zinc Layer, karfe bututun substrate. Saboda haka shi ne m lalata juriya.

Cold galvanized bututun ne lantarki galvanized, galvanized yawa ne kaɗan, kawai 10-50g / m2, da kansa lalata juriya da yawa bambanta fiye da zafi galvanized bututun. Regular galvanized bututun masana'antun, domin tabbatar da inganci, mafi yawa ba su yi amfani da lantarki galvanized (sanyi plating). Kawai ƙananan kamfanoni da ke da ƙananan kayan aiki da ke amfani da galvanizing, ba shakka farashinsu yana da arha. A halin yanzu ma'aikatar gini ya hukumance a kasa, kawar da fasaha baya sanyi galvanized bututun, a nan gaba ba za a yarda da sanyi galvanized bututun ruwa, gas bututun. A sanyi galvanized karfe bututu galvanized layers ne electroplating layers, da zinc layers da karfe bututu substrate. Zinc Layer yana da ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin ƙarancin. Saboda haka rashin lalata juriya. A cikin sabon gidaje, an hana amfani da bututun karfe mai sanyi a matsayin bututun ruwa.