An kafa kamfanin Tianjin Rainbow Steel Group a shekara ta 2000, dake birnin Tianjin.Bakan gizo Karfe ne wani hadedde baƙin ƙarfe da karfe sha'anin na galvanized karfe bututu, galvanized karfe kwana mashaya, galvanized profiles, galvanized karfe Tsarin for Infrastructure Construction, Gina Industry, Noma da kuma New Energy yankin.Samfuran mu sun sami takardar shaidar TUV, CE, ISO 9001-2008.Laser yankan, walda da stamping bita suna samuwa ga al'ada da kuma musamman kaya.