Boka reSimbi reTianjin RainbowYakavambwa muna 2000, iri muTianjin City. Nekuvandudzwa kwemakore makumi maviri apfuura, Rainbow Steel yave kambani yesimbi yakabatana yemapaipi esimbi akaumbwa, angle bar yesimbi yakaumbwa, galvanized profiles, galvanized steel structures yekuvaka infrastructure, Building Industry, Agriculture neNew Energy area. Isu tiriwo kambani huru yekugadzira steel tower yemagetsi kuNorth of China. Rainbow Steel Group ine makambani akati wandei anosanganisira steel processing lines, steel cutting, welding and stamping workshop, galvanizing mill ne hombe storage house. Chikwata chedu chine matekinoroji ekugadzira, processing experiences, engineering equipment ne advanced tools. Vanhu vedu vakangwara uye vanoshanda nesimba. Zvigadzirwa zvedu zvikuru zvinotengeswa kunze kwenyika mapaipi esimbi akaumbwa, mabasa esimbi kana frame works, galvanized iron angle bar, flat bar, iron channels and beams, steel profiles nemamwe mabasa ese esimbi ayo achada kugadziriswa zvakanyanya. Nekuvandudzwa kuri kuitika pasi rose, Rainbow steel yakazvipira kugadzira matekinoroji matsva uye sevhisi yakanaka kuti isangane nezvinodiwa zvesimba rezuva zviri kukura. Chikwata chedu chine ruzivo rwemakore anopfuura gumi uye chakabudirira mubhizinesi rekuisa solar (solar bracket). Zvigadzirwa zvedu zvakawana chitupa cheTUV, CE, ISO 9001-2008 nezvimwewo. Maworkshop ekucheka, kukwesha uye kugadzika neLaser anowanikwa kune zvinhu zvakajairika uye zvakagadzirwa nevanhu.