Susū mai i le Tianjin Rainbow Steel.
Matou te gaosia oloa u'amea po'o fausaga u'amea mo le Solar Mounting Steel Structure, Transmission & Distribution Steel Structures (Towers & Poles), Construction, Industrial, Scaffolding ma Greenhouse Construction.
Na faavaeina le Tianjin Rainbow Steel Group i le 2000, o loʻo i le Aai o Tianjin. Ina ua mavae ni nai tausaga o atinaʻe, ua atiaʻe le Rainbow Steel i se pisinisi uʻamea ma uʻamea tuʻufaʻatasi o paipa uʻamea apamemea, uʻamea apamemea tulimanu, faʻailoga apamemea, fausaga uʻamea, ma o matou foʻi o le fale gaosi uʻamea tele i le eletise i Saina. O la matou vaega e iai la matou lava fale gaosi uʻamea, o lea e mafai ai ona apamemea uma galuega mai la matou lava fale gaosi uʻamea.
Ia iloa le tele o a matou oloa u'amea e aofia ai Paipa U'amea, Tulimanu U'amea, U'amea Fa'alava, Oloa U'amea Fa'api'o, Fausaga U'amea Fa'apipi'i, 'Olo ma Pou U'amea, galuega fa'afiafia, tomai fa'apitoa i alamanuia ma le ofoina atu o auaunaga maualuga.