Tianjin Rainbow Steel Group na faavaeina i le 2000, o loʻo i totonu o Tianjin City.Rainbow Steel o se uʻamea tuʻufaʻatasia ma uʻamea atinaʻe o paipa uʻamea uʻamea, uʻamea uʻamea angle pa, faʻamatalaga uʻamea, fausaga uʻamea uʻamea mo Atinaʻe Faufautua, Fale Alamanuia, Faatoaga ma New Energy eria.O a matou oloa ua maua le tusi faamaonia o TUV, CE, ISO 9001-2008.Leisa tipi, uelo ma fa'ailoga fa'ailoga e avanoa mo oloa masani ma fa'apitoa.
Fa'afeso'ota'i i matou i le asō mo se fa'atalanoaga fa'atusa.