Ƙungiyar Karfe ta Tianjin Bakan GizoAn kafa kamfanin Rainbow Steel a shekarar 2000, wanda ke birnin Tianjin. Tare da ci gabansa na shekaru 20 da suka gabata, ya zama kamfani mai haɗakar ƙarfe da ƙarfe na bututun ƙarfe na galvanized, sandar kusurwar ƙarfe na galvanized, bayanan martaba na galvanized, tsarin ƙarfe na galvanized don Gine-ginen Kayayyaki, Masana'antar Gine-gine, Noma da yankin Sabbin Makamashi. Mu ne kuma babbar masana'antar hasumiyar ƙarfe ta lantarki a Arewacin China. Ƙungiyar Rainbow Steel Group tana da rassanta da dama waɗanda suka haɗa da layukan sarrafa ƙarfe, yanke ƙarfe, aikin walda da tambari, injin niƙa na galvanizing da babban gidan ajiya. Ƙungiyarmu tana da fasahar kera, gogewar sarrafawa, ƙwarewar injiniyanci da kayan aiki na zamani. Mutanenmu suna da wayo da himma. Manyan kayayyakinmu na fitarwa sune bututun ƙarfe na galvanized, ayyukan ginin ƙarfe ko ayyukan firam, sandar kusurwar ƙarfe na galvanized, sandar lebur, hanyoyin ƙarfe da katako, bayanan ƙarfe da duk sauran ayyukan ƙarfe waɗanda za su buƙaci ƙarin sarrafawa. Tare da ci gaban yanayi na duniya, Rainbow Steel ta himmatu wajen haɓaka fasahohin kirkire-kirkire da kyakkyawan sabis don biyan buƙatun makamashin rana da ke ƙaruwa. Ƙungiyarmu tana da ƙwarewa sama da shekaru 10 kuma tana da nasara a kasuwancin hawa hasken rana (ƙarfe mai amfani da hasken rana). Kayayyakinmu sun sami takardar shaidar TUV, CE, ISO 9001-2008 da sauransu. Ana samun bita na yanke laser, walda da tambari don kayayyaki na yau da kullun da na musamman.