Rufin rufin

  Rufin rufinAn samar da shi a Amurka a cikin 1930s.A farkon shekarun 1980, Wuhan Iron da Karfe da Baosteel sun fara gabatar da layukan samar da ƙarfe mai rufi.Tun daga wannan lokacin, ƙasata ta fara amfani da bangarori masu launi na gida zuwa gine-ginen masana'antu, irin su Shandong Master Plant, National Cotton and Grain Warehouse, Tsire-tsire a yankuna daban-daban na ci gaba, da dai sauransu. fasaha, ikon yin amfani da aikace-aikacen yana ci gaba da fadada kuma adadin ya ci gaba da karuwa.

Shiga cikin karni na 21, tattalin arzikin kasata ya samu ci gaba cikin sauri da kwanciyar hankali.Har ila yau, rufin rufin da aka lulluɓe masu launi sun shiga manyan gine-ginen jama'a a ko'ina daga gine-ginen masana'antu na gabaɗaya, kamar tashoshin tashar jirgin sama, tashoshin jirgin ƙasa, filayen wasa, wuraren wasan kwaikwayo, da manyan gidajen wasan kwaikwayo.A 2008 wasannin Olympics.Rufin, bene da bangon ginin sun ɗauki nau'in farantin karfe tare da ƙarin damuwa da haɗin kai, kuma hanyar ginin ta fi kimiyya kuma juriya na lalata ta fi ƙarfi.Aluminum-zinc farantin karfe, aluminum-magnesium-manganese gami farantin, titanium gami farantin, bakin karfe, da dai sauransu The bincike da kuma ci gaban ya inganta da aikace-aikace fasahar matakin subtype karfe faranti.